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Eisenstein integer

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3681: 319: 2964: 1838: 1862: 43: 1562: 1413: 2899: 887: 2578: 1438: 1256: 2745: 1200: 718: 1808: 302: 502: 2469: 2687: 2139: 733: 1732: 1083: 954: 1557:{\displaystyle \kappa =\left\lfloor a+{\tfrac {1}{\sqrt {3}}}b\right\rceil +\left\lfloor {\tfrac {2}{\sqrt {3}}}b\right\rceil \omega \ \ {\text{ and }}\ \ \rho ={\alpha }-\kappa \beta .} 2729: 565: 3781: 3246: 3432: 3385: 3204: 1591: 1408:{\displaystyle {\frac {\alpha }{\beta }}\ =\ {\tfrac {1}{\ |\beta |^{2}}}\alpha {\overline {\beta }}\ =\ a+bi\ =\ a+{\tfrac {1}{\sqrt {3}}}b+{\tfrac {2}{\sqrt {3}}}b\omega ,} 3812: 3343: 2072: 202: 3717: 2619: 3166: 2039: 1123: 2894:{\displaystyle \sum _{z\in \mathbf {E} \setminus \{0\}}{\frac {1}{z^{6}}}=G_{6}\left(e^{\frac {2\pi i}{3}}\right)={\frac {\Gamma (1/3)^{18}}{8960\pi ^{6}}}} 3501: 596: 2218: 28: 3710: 3848: 1737: 3128: 3302: 2960:
among all such complex tori. This torus can be obtained by identifying each of the three pairs of opposite edges of a regular hexagon.
60: 229: 1244:
One division algorithm is as follows. First perform the division in the field of complex numbers, and write the quotient in terms of
403: 3703: 3112: 1238: 126: 107: 3575: 3494: 2628: 79: 64: 3740: 3013: 882:{\displaystyle {\left|a+b\;\!\omega \right|}^{2}\,=\,{(a-{\tfrac {1}{2}}b)}^{2}+{\tfrac {3}{4}}b^{2}\,=\,a^{2}-ab+b^{2}~,} 86: 2081: 3288: 3589: 3063:
call these numbers "Euler-egészek", that is, Eulerian integers. The latter claims Euler worked with them in a proof.
2975:, and can be obtained by identifying each of the two pairs of opposite sides of a square fundamental domain, such as 2007:, and these factors are Eisenstein primes: they are precisely the Eisenstein integers whose norm is a rational prime. 1693: 1011: 2573:{\displaystyle \sum _{z\in \mathbf {E} \setminus \{0\}}{\frac {1}{z^{4}}}=G_{4}\left(e^{\frac {2\pi i}{3}}\right)=0} 911: 93: 3863: 3853: 3843: 3487: 2420: 53: 3028: 2692: 519: 75: 3858: 3750: 2075: 1432:. Then obtain the Eisenstein integer quotient by rounding the rational coefficients to the nearest integer: 3209: 363: 3536: 3390: 3348: 3680: 3171: 3099: 1570: 3760: 3531: 3306: 2971:
The other maximally symmetric torus is the quotient of the complex plane by the additive lattice of
2044: 1230: 896: 169: 148: 2583: 3786: 3685: 3018: 1089: 327: 312: 3745: 100: 3132: 2018: 3868: 3822: 3726: 3666: 3657: 3648: 3546: 3521: 3108: 3074: 3023: 3008: 2998: 2972: 2917: 1841:
Small Eisenstein primes. Those on the green axes are associate to a natural prime of the form
1620: 1234: 359: 335: 1849:. All others have an absolute value equal to 3 or square root of a natural prime of the form 3817: 3796: 3643: 3638: 3633: 3628: 3623: 3556: 3541: 3510: 3003: 2993: 2988: 1831: 996: 395: 377: 355: 318: 3594: 3526: 2963: 2945: 1195:{\displaystyle \alpha =\kappa \beta +\rho \ \ {\text{ with }}\ \ N(\rho )<N(\beta ).} 724: 3791: 2739: 2431: 2409: 1928: 968: 960: 339: 160: 156: 3474: 322:
Eisenstein integers as the points of a certain triangular lattice in the complex plane
3837: 3755: 3599: 3580: 3570: 3077: 2949: 2935: 1646:, acting by translations on the complex plane, is the 60°–120° rhombus with vertices 343: 331: 308: 713:{\displaystyle (a+b\;\!\omega )\;\!(c+d\;\!\omega )=(ac-bd)+(bc+ad-bd)\;\!\omega ~.} 3609: 3604: 3561: 2208: 1939: 1837: 964: 17: 3267: 3101:
Primes of the Form x2+ny2: Fermat, Class Field Theory and Complex Multiplication
2622: 2204: 2200: 2196: 2192: 2188: 2184: 2180: 2176: 2172: 2168: 2164: 1915:
is said to be an Eisenstein prime if its only non-unit divisors are of the form
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Complex number whose mapping on a coordinate plane produces a triangular lattice
2160: 2156: 3261: 3082: 2427: 380:. To see that the Eisenstein integers are algebraic integers note that each 2967:
Identifying each of the three pairs of opposite edges of a regular hexagon.
2400:
Up to conjugacy and unit multiples, the primes listed above, together with
1690:
to this vertex, but the maximum possible distance in our algorithm is only
1678:
lies inside one of the translates of this parallelogram, and the quotient
27:"Eulerian integer" and "Euler integer" redirect here. For other uses, see 2957: 1830:
For the unrelated concept of an Eisenstein prime of a modular curve, see
1594: 2419:
As of October 2023, the largest known real Eisenstein prime is the
1803:{\displaystyle |\rho |\leq {\tfrac {\sqrt {3}}{2}}|\beta |<|\beta |} 220: 3695: 3479: 3447: 1927:
is any of the six units. They are the corresponding concept to the
2962: 2435: 1860: 1836: 1684:
is one of its vertices. The remainder is the square distance from
297:{\displaystyle \omega ={\frac {-1+i{\sqrt {3}}}{2}}=e^{i2\pi /3}} 2734:
The sum of the reciprocals of all Eisenstein integers excluding
2458:
The sum of the reciprocals of all Eisenstein integers excluding
29:
List of topics named after Leonhard Euler § Euler's numbers
3699: 3483: 497:{\displaystyle z^{2}-(2a-b)\;\!z+\left(a^{2}-ab+b^{2}\right)~.} 36: 3448:"Entry 0fda1b – Fungrim: The Mathematical Functions Grimoire" 2738:
raised to the sixth power can be expressed in terms of the
2241:
Eisenstein primes: they admit nontrivial factorizations in
2213: 2682:{\displaystyle G_{k}\left(e^{\frac {2\pi i}{3}}\right)=0} 1623:
rings, is as follows. A fundamental domain for the ideal
892:
which is clearly a positive ordinary (rational) integer.
1229:
are all Eisenstein integers. This algorithm implies the
1758: 1698: 1490: 1460: 1383: 1363: 1280: 815: 787: 3393: 3351: 3309: 3212: 3174: 3135: 2748: 2695: 2631: 2586: 2472: 2141:, so it is regarded as a special type in some books. 2084: 2047: 2021: 1740: 1696: 1619:, while the analogous procedure fails for most other 1573: 1441: 1259: 1126: 1014: 914: 736: 599: 522: 406: 232: 172: 3782:
Gromov's systolic inequality for essential manifolds
342:
in the complex plane. The Eisenstein integers are a
3805: 3774: 3733: 2134:{\displaystyle 1-\omega =(-\omega )(1-\omega ^{2})} 67:. Unsourced material may be challenged and removed. 3426: 3379: 3337: 3240: 3198: 3160: 2893: 2723: 2681: 2613: 2572: 2430:. With one exception, all larger known primes are 2133: 2066: 2033: 1802: 1726: 1585: 1556: 1407: 1194: 1077: 948: 881: 712: 559: 496: 296: 196: 2450:; thus no Mersenne prime is an Eisenstein prime. 754: 700: 635: 621: 613: 439: 3813:Gromov's inequality for complex projective space 723:The 2-norm of an Eisenstein integer is just its 1727:{\displaystyle {\tfrac {\sqrt {3}}{2}}|\beta |} 1241:of Eisenstein integers into Eisenstein primes. 1078:{\displaystyle N(a+b\,\omega )=a^{2}-ab+b^{2}.} 949:{\displaystyle {\bar {\omega }}=\omega ^{2}~.} 3711: 3495: 8: 2774: 2768: 2498: 2492: 2144:The first few Eisenstein primes of the form 1580: 1574: 3718: 3704: 3696: 3502: 3488: 3480: 2438:. Real Eisenstein primes are congruent to 1005:is given by the square modulus, as above: 753: 699: 634: 620: 612: 438: 3414: 3404: 3392: 3356: 3350: 3314: 3308: 3222: 3211: 3181: 3177: 3176: 3173: 3140: 3134: 2882: 2867: 2855: 2843: 2817: 2803: 2788: 2779: 2760: 2753: 2747: 2724:{\displaystyle k\not \equiv 0{\pmod {6}}} 2705: 2694: 2650: 2636: 2630: 2601: 2591: 2585: 2541: 2527: 2512: 2503: 2484: 2477: 2471: 2122: 2083: 2058: 2046: 2020: 1934:There are two types of Eisenstein prime. 1795: 1787: 1779: 1771: 1757: 1749: 1741: 1739: 1719: 1711: 1697: 1695: 1572: 1537: 1520: 1489: 1459: 1440: 1382: 1362: 1316: 1303: 1298: 1289: 1279: 1260: 1258: 1151: 1125: 1066: 1044: 1030: 1013: 934: 916: 915: 913: 867: 845: 840: 836: 830: 814: 805: 786: 776: 774: 770: 764: 738: 735: 598: 560:{\displaystyle \omega ^{2}+\omega +1=0~.} 527: 521: 477: 455: 411: 405: 284: 274: 254: 239: 231: 171: 127:Learn how and when to remove this message 2948:containing all Eisenstein integers is a 1984:. Thus, such a prime may be factored as 995:The ring of Eisenstein integers forms a 317: 3289:"What are the zeros of the j-function?" 3040: 2956:. This is one of two tori with maximal 2765: 2489: 2442:, and all Mersenne primes greater than 983:, the Eisenstein integers of norm  570:The product of two Eisenstein integers 1816:could be slightly decreased by taking 1117:smaller than the divisor, satisfying: 2225:Natural primes that are congruent to 1956:and each rational prime congruent to 1881:are Eisenstein integers, we say that 7: 3241:{\displaystyle p\equiv 1{\pmod {3}}} 2344:Some non-real Eisenstein primes are 1893:if there is some Eisenstein integer 65:adding citations to reliable sources 3230: 2713: 2426:, discovered by Péter Szabolcs and 2408:, are all the Eisenstein primes of 1865:Eisenstein primes in a larger range 3475:Eisenstein Integer--from MathWorld 3427:{\displaystyle \rho =e^{2\pi i/3}} 3380:{\displaystyle G_{6}(\rho )\neq 0} 2846: 25: 3679: 3199:{\displaystyle \mathbb {F} _{p}} 2907:are the Eisenstein integers and 2761: 2485: 2289:and can therefore be written as 1909:. A non-unit Eisenstein integer 1586:{\displaystyle \lfloor x\rceil } 41: 3223: 2706: 2275:In general, if a natural prime 2011:In the second type, factors of 1593:may denote any of the standard 354:The Eisenstein integers form a 326:The Eisenstein integers form a 52:needs additional citations for 3368: 3362: 3338:{\displaystyle G_{4}(i)\neq 0} 3326: 3320: 3234: 3224: 3193: 3187: 2864: 2849: 2717: 2707: 2462:raised to the fourth power is 2128: 2109: 2106: 2097: 1796: 1788: 1780: 1772: 1750: 1742: 1720: 1712: 1299: 1290: 1186: 1180: 1171: 1165: 1034: 1018: 921: 801: 777: 696: 669: 663: 645: 639: 622: 617: 600: 435: 420: 151:), occasionally also known as 1: 2067:{\displaystyle 1-\omega ^{2}} 197:{\displaystyle z=a+b\omega ,} 3849:Quadratic irrational numbers 3098:Cox, David A. (1997-05-08). 3061:. Tankönyvkiadó. p. 75. 2614:{\displaystyle e^{2\pi i/3}} 1950:is also an Eisenstein prime. 1321: 3590:Quadratic irrational number 3576:Pisot–Vijayaraghavan number 1822:to be the closest corner.) 3885: 3741:Loewner's torus inequality 3014:Loewner's torus inequality 2930:by the Eisenstein integers 2307:, then it factorizes over 1931:in the Gaussian integers. 1829: 1600:The reason this satisfies 1092:, applied to any dividend 26: 3675: 3517: 3161:{\displaystyle X^{2}+X+1} 2421:tenth-largest known prime 2034:{\displaystyle 1-\omega } 1974:of an Eisenstein integer 1672:. Any Eisenstein integer 3049:Surányi, László (1997). 3029:Dixon elliptic functions 1946:) which is congruent to 3775:1-systoles of manifolds 3751:Filling area conjecture 3057:Szalay, Mihály (1991). 2952:of real dimension  1597:-to-integer functions. 590:is given explicitly by 513:satisfies the equation 334:, in contrast with the 3734:1-systoles of surfaces 3686:Mathematics portal 3428: 3381: 3339: 3262:"Largest Known Primes" 3242: 3200: 3162: 3053:. TYPOTEX. p. 73. 2968: 2895: 2725: 2683: 2615: 2574: 2135: 2068: 2035: 1960:are equal to the norm 1866: 1858: 1804: 1728: 1587: 1558: 1409: 1196: 1079: 971:in the complex plane: 950: 883: 714: 561: 498: 364:algebraic number field 344:countably infinite set 323: 298: 198: 3429: 3382: 3340: 3243: 3201: 3163: 2966: 2938:of the complex plane 2896: 2726: 2684: 2616: 2575: 2136: 2069: 2036: 1864: 1840: 1805: 1729: 1588: 1559: 1410: 1197: 1080: 951: 884: 715: 562: 499: 321: 299: 199: 3761:Systoles of surfaces 3532:Constructible number 3391: 3349: 3307: 3210: 3172: 3133: 3078:"Eisenstein integer" 2746: 2693: 2629: 2584: 2470: 2082: 2045: 2019: 1738: 1694: 1571: 1439: 1257: 1239:unique factorization 1124: 1012: 967:formed by the sixth 963:in this ring is the 912: 734: 597: 520: 404: 230: 170: 76:"Eisenstein integer" 61:improve this article 3766:Eisenstein integers 3658:Supersilver ratio ( 3649:Supergolden ratio ( 1231:Euclidean algorithm 1105:, gives a quotient 149:Gotthold Eisenstein 145:Eisenstein integers 18:Eisenstein integers 3787:Essential manifold 3552:Eisenstein integer 3424: 3377: 3335: 3238: 3196: 3158: 3075:Weisstein, Eric W. 3019:Hurwitz quaternion 2969: 2891: 2778: 2721: 2679: 2611: 2570: 2502: 2131: 2064: 2031: 1867: 1859: 1800: 1769: 1724: 1709: 1583: 1554: 1501: 1471: 1405: 1394: 1374: 1311: 1192: 1090:division algorithm 1075: 946: 879: 824: 796: 727:, and is given by 710: 557: 494: 360:algebraic integers 328:triangular lattice 324: 313:cube root of unity 294: 194: 3864:Systolic geometry 3854:Cyclotomic fields 3844:Algebraic numbers 3831: 3830: 3823:Systolic category 3727:Systolic geometry 3693: 3692: 3667:Twelfth root of 2 3547:Doubling the cube 3537:Conway's constant 3522:Algebraic integer 3511:Algebraic numbers 3024:Quadratic integer 3009:Cubic reciprocity 2999:Systolic geometry 2973:Gaussian integers 2918:Eisenstein series 2889: 2833: 2794: 2749: 2666: 2557: 2518: 2473: 2454:Eisenstein series 2446:are congruent to 1826:Eisenstein primes 1768: 1764: 1708: 1704: 1621:quadratic integer 1530: 1527: 1523: 1519: 1516: 1500: 1499: 1470: 1469: 1393: 1392: 1373: 1372: 1355: 1349: 1334: 1328: 1324: 1310: 1288: 1278: 1272: 1268: 1161: 1158: 1154: 1150: 1147: 942: 924: 897:complex conjugate 875: 823: 795: 706: 553: 490: 394:is a root of the 336:Gaussian integers 311:(hence non-real) 265: 259: 153:Eulerian integers 137: 136: 129: 111: 16:(Redirected from 3876: 3818:Systolic freedom 3797:Hermite constant 3720: 3713: 3706: 3697: 3684: 3683: 3661: 3652: 3644:Square root of 7 3639:Square root of 6 3634:Square root of 5 3629:Square root of 3 3624:Square root of 2 3617: 3613: 3584: 3565: 3557:Gaussian integer 3542:Cyclotomic field 3504: 3497: 3490: 3481: 3462: 3461: 3459: 3458: 3444: 3438: 3437: 3433: 3431: 3430: 3425: 3423: 3422: 3418: 3386: 3384: 3383: 3378: 3361: 3360: 3344: 3342: 3341: 3336: 3319: 3318: 3299: 3293: 3292: 3285: 3279: 3278: 3276: 3275: 3258: 3252: 3251: 3247: 3245: 3244: 3239: 3237: 3205: 3203: 3202: 3197: 3186: 3185: 3180: 3168:is reducible in 3167: 3165: 3164: 3159: 3145: 3144: 3125: 3119: 3118: 3106: 3095: 3089: 3088: 3087: 3070: 3064: 3062: 3054: 3045: 3004:Hermite constant 2994:Cyclotomic field 2989:Gaussian integer 2978: 2955: 2943: 2929: 2915: 2906: 2900: 2898: 2897: 2892: 2890: 2888: 2887: 2886: 2873: 2872: 2871: 2859: 2844: 2839: 2835: 2834: 2829: 2818: 2808: 2807: 2795: 2793: 2792: 2780: 2777: 2764: 2737: 2730: 2728: 2727: 2722: 2720: 2688: 2686: 2685: 2680: 2672: 2668: 2667: 2662: 2651: 2641: 2640: 2620: 2618: 2617: 2612: 2610: 2609: 2605: 2579: 2577: 2576: 2571: 2563: 2559: 2558: 2553: 2542: 2532: 2531: 2519: 2517: 2516: 2504: 2501: 2488: 2465: 2461: 2449: 2445: 2441: 2434:, discovered by 2425: 2415: 2407: 2403: 2395: 2388: 2381: 2374: 2367: 2360: 2353: 2339: 2312: 2306: 2288: 2284: 2280: 2270: 2257: 2246: 2236: 2232: 2228: 2216: 2211:, ... (sequence 2151: 2140: 2138: 2137: 2132: 2127: 2126: 2073: 2071: 2070: 2065: 2063: 2062: 2040: 2038: 2037: 2032: 2014: 2006: 1983: 1973: 1959: 1955: 1949: 1926: 1920: 1914: 1908: 1898: 1892: 1886: 1880: 1874: 1856: 1848: 1832:Eisenstein ideal 1821: 1815: 1809: 1807: 1806: 1801: 1799: 1791: 1783: 1775: 1770: 1760: 1759: 1753: 1745: 1733: 1731: 1730: 1725: 1723: 1715: 1710: 1700: 1699: 1689: 1683: 1677: 1671: 1661: 1655: 1649: 1645: 1618: 1592: 1590: 1589: 1584: 1563: 1561: 1560: 1555: 1541: 1528: 1525: 1524: 1521: 1517: 1514: 1510: 1506: 1502: 1495: 1491: 1480: 1476: 1472: 1465: 1461: 1431: 1414: 1412: 1411: 1406: 1395: 1388: 1384: 1375: 1368: 1364: 1353: 1347: 1332: 1326: 1325: 1317: 1312: 1309: 1308: 1307: 1302: 1293: 1286: 1281: 1276: 1270: 1269: 1261: 1249: 1228: 1222: 1216: 1210: 1201: 1199: 1198: 1193: 1159: 1156: 1155: 1153: with  1152: 1148: 1145: 1116: 1111:and a remainder 1110: 1104: 1097: 1084: 1082: 1081: 1076: 1071: 1070: 1049: 1048: 1004: 997:Euclidean domain 991:Euclidean domain 986: 982: 955: 953: 952: 947: 940: 939: 938: 926: 925: 917: 904: 888: 886: 885: 880: 873: 872: 871: 850: 849: 835: 834: 825: 816: 810: 809: 804: 797: 788: 769: 768: 763: 762: 758: 719: 717: 716: 711: 704: 589: 579: 566: 564: 563: 558: 551: 532: 531: 512: 503: 501: 500: 495: 488: 487: 483: 482: 481: 460: 459: 416: 415: 396:monic polynomial 393: 378:cyclotomic field 375: 356:commutative ring 303: 301: 300: 295: 293: 292: 288: 266: 261: 260: 255: 240: 218: 212: 203: 201: 200: 195: 132: 125: 121: 118: 112: 110: 69: 45: 37: 21: 3884: 3883: 3879: 3878: 3877: 3875: 3874: 3873: 3834: 3833: 3832: 3827: 3806:Higher systoles 3801: 3770: 3746:Pu's inequality 3729: 3724: 3694: 3689: 3678: 3671: 3659: 3650: 3618: 3615: 3611: 3595:Rational number 3582: 3581:Plastic ratio ( 3563: 3527:Chebyshev nodes 3513: 3508: 3471: 3466: 3465: 3456: 3454: 3446: 3445: 3441: 3400: 3389: 3388: 3352: 3347: 3346: 3310: 3305: 3304: 3301: 3300: 3296: 3287: 3286: 3282: 3273: 3271: 3260: 3259: 3255: 3208: 3207: 3175: 3170: 3169: 3136: 3131: 3130: 3127: 3126: 3122: 3115: 3104: 3097: 3096: 3092: 3073: 3072: 3071: 3067: 3056: 3048: 3046: 3042: 3037: 2985: 2976: 2953: 2939: 2932: 2925: 2914: 2908: 2902: 2878: 2874: 2863: 2845: 2819: 2813: 2809: 2799: 2784: 2744: 2743: 2735: 2691: 2690: 2689:if and only if 2652: 2646: 2642: 2632: 2627: 2626: 2587: 2582: 2581: 2543: 2537: 2533: 2523: 2508: 2468: 2467: 2463: 2459: 2456: 2447: 2443: 2439: 2432:Mersenne primes 2423: 2413: 2405: 2401: 2390: 2383: 2376: 2369: 2362: 2355: 2348: 2317: 2308: 2290: 2286: 2282: 2276: 2260: 2251: 2247:. For example: 2242: 2234: 2230: 2226: 2212: 2145: 2118: 2080: 2079: 2054: 2043: 2042: 2017: 2016: 2012: 1985: 1975: 1961: 1957: 1953: 1947: 1929:Gaussian primes 1922: 1916: 1910: 1900: 1894: 1888: 1882: 1876: 1870: 1850: 1842: 1835: 1828: 1817: 1811: 1810:. (The size of 1736: 1735: 1692: 1691: 1685: 1679: 1673: 1663: 1657: 1651: 1647: 1624: 1601: 1569: 1568: 1522: and  1488: 1484: 1452: 1448: 1437: 1436: 1419: 1297: 1285: 1255: 1254: 1245: 1233:, which proves 1224: 1218: 1212: 1206: 1122: 1121: 1112: 1106: 1099: 1093: 1062: 1040: 1010: 1009: 1000: 993: 984: 972: 930: 910: 909: 900: 863: 841: 826: 775: 743: 739: 737: 732: 731: 725:squared modulus 595: 594: 581: 571: 523: 518: 517: 508: 507:In particular, 473: 451: 450: 446: 407: 402: 401: 381: 366: 352: 338:, which form a 270: 241: 228: 227: 214: 208: 168: 167: 161:complex numbers 133: 122: 116: 113: 70: 68: 58: 46: 35: 32: 23: 22: 15: 12: 11: 5: 3882: 3880: 3872: 3871: 3866: 3861: 3859:Lattice points 3856: 3851: 3846: 3836: 3835: 3829: 3828: 3826: 3825: 3820: 3815: 3809: 3807: 3803: 3802: 3800: 3799: 3794: 3792:Filling radius 3789: 3784: 3778: 3776: 3772: 3771: 3769: 3768: 3763: 3758: 3753: 3748: 3743: 3737: 3735: 3731: 3730: 3725: 3723: 3722: 3715: 3708: 3700: 3691: 3690: 3676: 3673: 3672: 3670: 3669: 3664: 3655: 3646: 3641: 3636: 3631: 3626: 3621: 3614: 3610:Silver ratio ( 3607: 3602: 3597: 3592: 3587: 3578: 3573: 3568: 3562:Golden ratio ( 3559: 3554: 3549: 3544: 3539: 3534: 3529: 3524: 3518: 3515: 3514: 3509: 3507: 3506: 3499: 3492: 3484: 3478: 3477: 3470: 3469:External links 3467: 3464: 3463: 3439: 3421: 3417: 3413: 3410: 3407: 3403: 3399: 3396: 3376: 3373: 3370: 3367: 3364: 3359: 3355: 3334: 3331: 3328: 3325: 3322: 3317: 3313: 3294: 3280: 3253: 3236: 3233: 3229: 3226: 3221: 3218: 3215: 3195: 3192: 3189: 3184: 3179: 3157: 3154: 3151: 3148: 3143: 3139: 3120: 3113: 3107:. p. 77. 3090: 3065: 3039: 3038: 3036: 3033: 3032: 3031: 3026: 3021: 3016: 3011: 3006: 3001: 2996: 2991: 2984: 2981: 2931: 2922: 2912: 2885: 2881: 2877: 2870: 2866: 2862: 2858: 2854: 2851: 2848: 2842: 2838: 2832: 2828: 2825: 2822: 2816: 2812: 2806: 2802: 2798: 2791: 2787: 2783: 2776: 2773: 2770: 2767: 2763: 2759: 2756: 2752: 2740:gamma function 2719: 2716: 2712: 2709: 2704: 2701: 2698: 2678: 2675: 2671: 2665: 2661: 2658: 2655: 2649: 2645: 2639: 2635: 2608: 2604: 2600: 2597: 2594: 2590: 2569: 2566: 2562: 2556: 2552: 2549: 2546: 2540: 2536: 2530: 2526: 2522: 2515: 2511: 2507: 2500: 2497: 2494: 2491: 2487: 2483: 2480: 2476: 2455: 2452: 2412:not exceeding 2410:absolute value 2398: 2397: 2342: 2341: 2273: 2272: 2258: 2223: 2222: 2130: 2125: 2121: 2117: 2114: 2111: 2108: 2105: 2102: 2099: 2096: 2093: 2090: 2087: 2061: 2057: 2053: 2050: 2030: 2027: 2024: 2009: 2008: 1951: 1944:rational prime 1827: 1824: 1798: 1794: 1790: 1786: 1782: 1778: 1774: 1767: 1763: 1756: 1752: 1748: 1744: 1722: 1718: 1714: 1707: 1703: 1582: 1579: 1576: 1565: 1564: 1553: 1550: 1547: 1544: 1540: 1536: 1533: 1513: 1509: 1505: 1498: 1494: 1487: 1483: 1479: 1475: 1468: 1464: 1458: 1455: 1451: 1447: 1444: 1416: 1415: 1404: 1401: 1398: 1391: 1387: 1381: 1378: 1371: 1367: 1361: 1358: 1352: 1346: 1343: 1340: 1337: 1331: 1323: 1320: 1315: 1306: 1301: 1296: 1292: 1284: 1275: 1267: 1264: 1235:Euclid's lemma 1203: 1202: 1191: 1188: 1185: 1182: 1179: 1176: 1173: 1170: 1167: 1164: 1144: 1141: 1138: 1135: 1132: 1129: 1086: 1085: 1074: 1069: 1065: 1061: 1058: 1055: 1052: 1047: 1043: 1039: 1036: 1033: 1029: 1026: 1023: 1020: 1017: 992: 989: 969:roots of unity 961:group of units 957: 956: 945: 937: 933: 929: 923: 920: 890: 889: 878: 870: 866: 862: 859: 856: 853: 848: 844: 839: 833: 829: 822: 819: 813: 808: 803: 800: 794: 791: 785: 782: 779: 773: 767: 761: 757: 752: 749: 746: 742: 721: 720: 709: 703: 698: 695: 692: 689: 686: 683: 680: 677: 674: 671: 668: 665: 662: 659: 656: 653: 650: 647: 644: 641: 638: 633: 630: 627: 624: 619: 616: 611: 608: 605: 602: 568: 567: 556: 550: 547: 544: 541: 538: 535: 530: 526: 505: 504: 493: 486: 480: 476: 472: 469: 466: 463: 458: 454: 449: 445: 442: 437: 434: 431: 428: 425: 422: 419: 414: 410: 351: 348: 340:square lattice 305: 304: 291: 287: 283: 280: 277: 273: 269: 264: 258: 253: 250: 247: 244: 238: 235: 205: 204: 193: 190: 187: 184: 181: 178: 175: 157:Leonhard Euler 135: 134: 49: 47: 40: 33: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3881: 3870: 3867: 3865: 3862: 3860: 3857: 3855: 3852: 3850: 3847: 3845: 3842: 3841: 3839: 3824: 3821: 3819: 3816: 3814: 3811: 3810: 3808: 3804: 3798: 3795: 3793: 3790: 3788: 3785: 3783: 3780: 3779: 3777: 3773: 3767: 3764: 3762: 3759: 3757: 3756:Bolza surface 3754: 3752: 3749: 3747: 3744: 3742: 3739: 3738: 3736: 3732: 3728: 3721: 3716: 3714: 3709: 3707: 3702: 3701: 3698: 3688: 3687: 3682: 3674: 3668: 3665: 3663: 3656: 3654: 3647: 3645: 3642: 3640: 3637: 3635: 3632: 3630: 3627: 3625: 3622: 3620: 3608: 3606: 3603: 3601: 3600:Root of unity 3598: 3596: 3593: 3591: 3588: 3586: 3579: 3577: 3574: 3572: 3571:Perron number 3569: 3567: 3560: 3558: 3555: 3553: 3550: 3548: 3545: 3543: 3540: 3538: 3535: 3533: 3530: 3528: 3525: 3523: 3520: 3519: 3516: 3512: 3505: 3500: 3498: 3493: 3491: 3486: 3485: 3482: 3476: 3473: 3472: 3468: 3453: 3449: 3443: 3440: 3435: 3419: 3415: 3411: 3408: 3405: 3401: 3397: 3394: 3374: 3371: 3365: 3357: 3353: 3332: 3329: 3323: 3315: 3311: 3298: 3295: 3290: 3284: 3281: 3270: 3269: 3263: 3257: 3254: 3249: 3231: 3227: 3219: 3216: 3213: 3190: 3182: 3155: 3152: 3149: 3146: 3141: 3137: 3124: 3121: 3116: 3114:0-471-19079-9 3110: 3103: 3102: 3094: 3091: 3085: 3084: 3079: 3076: 3069: 3066: 3060: 3052: 3044: 3041: 3034: 3030: 3027: 3025: 3022: 3020: 3017: 3015: 3012: 3010: 3007: 3005: 3002: 3000: 2997: 2995: 2992: 2990: 2987: 2986: 2982: 2980: 2974: 2965: 2961: 2959: 2951: 2950:complex torus 2947: 2942: 2937: 2928: 2923: 2921: 2920:of weight 6. 2919: 2911: 2905: 2883: 2879: 2875: 2868: 2860: 2856: 2852: 2840: 2836: 2830: 2826: 2823: 2820: 2814: 2810: 2804: 2800: 2796: 2789: 2785: 2781: 2771: 2757: 2754: 2750: 2741: 2732: 2714: 2710: 2702: 2699: 2696: 2676: 2673: 2669: 2663: 2659: 2656: 2653: 2647: 2643: 2637: 2633: 2625:. In general 2624: 2621:is a root of 2606: 2602: 2598: 2595: 2592: 2588: 2567: 2564: 2560: 2554: 2550: 2547: 2544: 2538: 2534: 2528: 2524: 2520: 2513: 2509: 2505: 2495: 2481: 2478: 2474: 2453: 2451: 2437: 2433: 2429: 2424:10223 × 2 + 1 2422: 2417: 2411: 2394: 2387: 2380: 2373: 2366: 2359: 2352: 2347: 2346: 2345: 2337: 2333: 2329: 2325: 2321: 2316: 2315: 2314: 2311: 2305: 2301: 2297: 2293: 2279: 2268: 2264: 2259: 2255: 2250: 2249: 2248: 2245: 2240: 2220: 2215: 2210: 2206: 2202: 2198: 2194: 2190: 2186: 2182: 2178: 2174: 2170: 2166: 2162: 2158: 2155: 2154: 2153: 2149: 2142: 2123: 2119: 2115: 2112: 2103: 2100: 2094: 2091: 2088: 2085: 2077: 2059: 2055: 2051: 2048: 2028: 2025: 2022: 2004: 2001: 1997: 1993: 1989: 1982: 1978: 1972: 1968: 1964: 1952: 1945: 1941: 1937: 1936: 1935: 1932: 1930: 1925: 1919: 1913: 1907: 1903: 1897: 1891: 1885: 1879: 1873: 1863: 1854: 1846: 1839: 1833: 1825: 1823: 1820: 1814: 1792: 1784: 1776: 1765: 1761: 1754: 1746: 1716: 1705: 1701: 1688: 1682: 1676: 1670: 1666: 1660: 1654: 1644: 1641: 1637: 1634: 1630: 1627: 1622: 1616: 1612: 1608: 1604: 1598: 1596: 1577: 1551: 1548: 1545: 1542: 1538: 1534: 1531: 1511: 1507: 1503: 1496: 1492: 1485: 1481: 1477: 1473: 1466: 1462: 1456: 1453: 1449: 1445: 1442: 1435: 1434: 1433: 1430: 1426: 1422: 1418:for rational 1402: 1399: 1396: 1389: 1385: 1379: 1376: 1369: 1365: 1359: 1356: 1350: 1344: 1341: 1338: 1335: 1329: 1318: 1313: 1304: 1294: 1282: 1273: 1265: 1262: 1253: 1252: 1251: 1248: 1242: 1240: 1236: 1232: 1227: 1221: 1215: 1209: 1189: 1183: 1177: 1174: 1168: 1162: 1142: 1139: 1136: 1133: 1130: 1127: 1120: 1119: 1118: 1115: 1109: 1102: 1096: 1091: 1072: 1067: 1063: 1059: 1056: 1053: 1050: 1045: 1041: 1037: 1031: 1027: 1024: 1021: 1015: 1008: 1007: 1006: 1003: 998: 990: 988: 980: 976: 970: 966: 962: 943: 935: 931: 927: 918: 908: 907: 906: 903: 898: 893: 876: 868: 864: 860: 857: 854: 851: 846: 842: 837: 831: 827: 820: 817: 811: 806: 798: 792: 789: 783: 780: 771: 765: 759: 755: 750: 747: 744: 740: 730: 729: 728: 726: 707: 701: 693: 690: 687: 684: 681: 678: 675: 672: 666: 660: 657: 654: 651: 648: 642: 636: 631: 628: 625: 614: 609: 606: 603: 593: 592: 591: 588: 584: 578: 574: 554: 548: 545: 542: 539: 536: 533: 528: 524: 516: 515: 514: 511: 491: 484: 478: 474: 470: 467: 464: 461: 456: 452: 447: 443: 440: 432: 429: 426: 423: 417: 412: 408: 400: 399: 398: 397: 392: 388: 384: 379: 373: 369: 365: 361: 357: 349: 347: 345: 341: 337: 333: 332:complex plane 329: 320: 316: 314: 310: 289: 285: 281: 278: 275: 271: 267: 262: 256: 251: 248: 245: 242: 236: 233: 226: 225: 224: 222: 217: 211: 191: 188: 185: 182: 179: 176: 173: 166: 165: 164: 162: 158: 154: 150: 147:(named after 146: 142: 131: 128: 120: 109: 106: 102: 99: 95: 92: 88: 85: 81: 78: –  77: 73: 72:Find sources: 66: 62: 56: 55: 50:This article 48: 44: 39: 38: 30: 19: 3765: 3677: 3605:Salem number 3551: 3455:. Retrieved 3451: 3442: 3297: 3283: 3272:. Retrieved 3265: 3256: 3123: 3100: 3093: 3081: 3068: 3058: 3050: 3043: 2970: 2940: 2933: 2926: 2924:Quotient of 2909: 2903: 2733: 2457: 2418: 2399: 2392: 2385: 2378: 2371: 2364: 2357: 2350: 2343: 2335: 2331: 2327: 2323: 2319: 2309: 2303: 2299: 2295: 2291: 2277: 2274: 2266: 2262: 2253: 2243: 2238: 2224: 2147: 2143: 2010: 2002: 1999: 1995: 1991: 1987: 1980: 1976: 1970: 1966: 1962: 1943: 1940:prime number 1938:an ordinary 1933: 1923: 1917: 1911: 1905: 1901: 1895: 1889: 1883: 1877: 1871: 1868: 1852: 1844: 1818: 1812: 1686: 1680: 1674: 1668: 1664: 1658: 1652: 1642: 1639: 1635: 1632: 1628: 1625: 1614: 1610: 1606: 1602: 1599: 1566: 1428: 1424: 1420: 1417: 1246: 1243: 1225: 1219: 1213: 1207: 1204: 1113: 1107: 1100: 1098:and divisor 1094: 1087: 1001: 994: 978: 974: 965:cyclic group 958: 901: 894: 891: 722: 586: 582: 576: 572: 569: 509: 506: 390: 386: 382: 376:– the third 371: 367: 353: 325: 306: 215: 209: 206: 163:of the form 152: 144: 138: 123: 114: 104: 97: 90: 83: 71: 59:Please help 54:verification 51: 3452:fungrim.org 3303:"Show that 3268:Prime Pages 3059:Számelmélet 2623:j-invariant 2252:3 = −(1 + 2 999:whose norm 159:), are the 141:mathematics 3838:Categories 3457:2023-06-22 3274:2023-02-27 2076:associates 1899:such that 905:satisfies 895:Also, the 350:Properties 87:newspapers 3409:π 3395:ρ 3372:≠ 3366:ρ 3330:≠ 3217:≡ 3083:MathWorld 2880:π 2847:Γ 2824:π 2766:∖ 2758:∈ 2751:∑ 2657:π 2596:π 2548:π 2490:∖ 2482:∈ 2475:∑ 2428:PrimeGrid 2261:7 = (3 + 2120:ω 2116:− 2104:ω 2101:− 2092:ω 2089:− 2056:ω 2052:− 2029:ω 2026:− 1793:β 1777:β 1755:≤ 1747:ρ 1717:β 1581:⌉ 1575:⌊ 1549:β 1546:κ 1543:− 1539:α 1532:ρ 1512:ω 1443:κ 1400:ω 1322:¯ 1319:β 1314:α 1295:β 1266:β 1263:α 1184:β 1169:ρ 1143:ρ 1137:β 1134:κ 1128:α 1051:− 1032:ω 932:ω 922:¯ 919:ω 852:− 784:− 756:ω 702:ω 688:− 655:− 637:ω 615:ω 537:ω 525:ω 462:− 430:− 418:− 309:primitive 282:π 243:− 234:ω 189:ω 117:July 2020 3869:Integers 2983:See also 2958:symmetry 2936:quotient 2700:≢ 1921:, where 1887:divides 1595:rounding 1508:⌉ 1486:⌊ 1478:⌉ 1450:⌊ 1237:and the 221:integers 3051:Algebra 2946:lattice 2944:by the 2916:is the 2448:1 mod 3 2440:2 mod 3 2285:modulo 2233:modulo 2217:in the 2214:A003627 1958:1 mod 3 1948:2 mod 3 1609:) < 362:in the 330:in the 155:(after 101:scholar 3345:, and 3111:  2901:where 2265:)(2 − 1529:  1526:  1518:  1515:  1354:  1348:  1333:  1327:  1287:  1277:  1271:  1205:Here, 1160:  1157:  1149:  1146:  973:{±1, ± 941:  874:  705:  552:  489:  207:where 143:, the 103:  96:  89:  82:  74:  3105:(PDF) 3047:Both 3035:Notes 2436:GIMPS 2391:7 + 3 2370:5 + 2 2318:p = ( 2152:are: 1734:, so 1567:Here 307:is a 108:JSTOR 94:books 3266:The 3206:iff 3109:ISBN 3055:and 2934:The 2876:8960 2404:and 2384:7 + 2377:6 + 2363:4 + 2356:3 + 2349:2 + 2334:) − 2237:are 2219:OEIS 2074:are 2041:and 1942:(or 1875:and 1785:< 1175:< 959:The 580:and 223:and 219:are 213:and 80:news 3228:mod 2711:mod 2580:so 2326:)(( 2313:as 2281:is 2239:not 2229:or 2209:101 2150:− 1 1869:If 1855:+ 1 1847:+ 2 1103:≠ 0 977:, ± 899:of 358:of 139:In 63:by 3840:: 3450:. 3387:, 3264:. 3080:. 2979:. 2977:× 2869:18 2742:: 2731:. 2466:: 2416:. 2389:, 2382:, 2375:, 2368:, 2361:, 2354:, 2336:bω 2330:− 2324:bω 2322:+ 2302:+ 2300:ab 2298:− 2294:= 2221:). 2207:, 2205:89 2203:, 2201:83 2199:, 2197:71 2195:, 2193:59 2191:, 2189:53 2187:, 2185:47 2183:, 2181:41 2179:, 2177:29 2175:, 2173:23 2171:, 2169:17 2167:, 2165:11 2163:, 2159:, 2078:: 2015:, 1998:+ 1994:)( 1992:ωy 1990:+ 1981:ωy 1979:+ 1969:+ 1967:xy 1965:− 1918:ux 1906:zx 1904:= 1669:ωβ 1667:+ 1662:, 1659:ωβ 1656:, 1650:, 1643:ωβ 1638:+ 1631:= 1427:∈ 1423:, 1250:: 1223:, 1217:, 1211:, 1088:A 987:. 587:dω 585:+ 577:bω 575:+ 391:bω 389:+ 385:= 346:. 315:. 3719:e 3712:t 3705:v 3662:) 3660:ς 3653:) 3651:ψ 3619:) 3616:S 3612:δ 3585:) 3583:ρ 3566:) 3564:φ 3503:e 3496:t 3489:v 3460:. 3436:. 3434:" 3420:3 3416:/ 3412:i 3406:2 3402:e 3398:= 3375:0 3369:) 3363:( 3358:6 3354:G 3333:0 3327:) 3324:i 3321:( 3316:4 3312:G 3291:. 3277:. 3250:. 3248:" 3235:) 3232:3 3225:( 3220:1 3214:p 3194:] 3191:X 3188:[ 3183:p 3178:F 3156:1 3153:+ 3150:X 3147:+ 3142:2 3138:X 3129:" 3117:. 3086:. 2954:2 2941:C 2927:C 2913:6 2910:G 2904:E 2884:6 2865:) 2861:3 2857:/ 2853:1 2850:( 2841:= 2837:) 2831:3 2827:i 2821:2 2815:e 2811:( 2805:6 2801:G 2797:= 2790:6 2786:z 2782:1 2775:} 2772:0 2769:{ 2762:E 2755:z 2736:0 2718:) 2715:6 2708:( 2703:0 2697:k 2677:0 2674:= 2670:) 2664:3 2660:i 2654:2 2648:e 2644:( 2638:k 2634:G 2607:3 2603:/ 2599:i 2593:2 2589:e 2568:0 2565:= 2561:) 2555:3 2551:i 2545:2 2539:e 2535:( 2529:4 2525:G 2521:= 2514:4 2510:z 2506:1 2499:} 2496:0 2493:{ 2486:E 2479:z 2464:0 2460:0 2444:3 2414:7 2406:5 2402:2 2396:. 2393:ω 2386:ω 2379:ω 2372:ω 2365:ω 2358:ω 2351:ω 2340:. 2338:) 2332:b 2328:a 2320:a 2310:Z 2304:b 2296:a 2292:p 2287:3 2283:1 2278:p 2271:. 2269:) 2267:ω 2263:ω 2256:) 2254:ω 2244:Z 2235:3 2231:1 2227:0 2161:5 2157:2 2148:n 2146:3 2129:) 2124:2 2113:1 2110:( 2107:) 2098:( 2095:= 2086:1 2060:2 2049:1 2023:1 2013:3 2005:) 2003:y 2000:ω 1996:x 1988:x 1986:( 1977:x 1971:y 1963:x 1954:3 1924:u 1912:x 1902:y 1896:z 1890:y 1884:x 1878:y 1872:x 1857:. 1853:n 1851:3 1845:n 1843:3 1834:. 1819:κ 1813:ρ 1797:| 1789:| 1781:| 1773:| 1766:2 1762:3 1751:| 1743:| 1721:| 1713:| 1706:2 1702:3 1687:α 1681:κ 1675:α 1665:β 1653:β 1648:0 1640:Z 1636:β 1633:Z 1629:β 1626:Z 1617:) 1615:β 1613:( 1611:N 1607:ρ 1605:( 1603:N 1578:x 1552:. 1535:= 1504:b 1497:3 1493:2 1482:+ 1474:b 1467:3 1463:1 1457:+ 1454:a 1446:= 1429:Q 1425:b 1421:a 1403:, 1397:b 1390:3 1386:2 1380:+ 1377:b 1370:3 1366:1 1360:+ 1357:a 1351:= 1345:i 1342:b 1339:+ 1336:a 1330:= 1305:2 1300:| 1291:| 1283:1 1274:= 1247:ω 1226:ρ 1220:κ 1214:β 1208:α 1190:. 1187:) 1181:( 1178:N 1172:) 1166:( 1163:N 1140:+ 1131:= 1114:ρ 1108:κ 1101:β 1095:α 1073:. 1068:2 1064:b 1060:+ 1057:b 1054:a 1046:2 1042:a 1038:= 1035:) 1028:b 1025:+ 1022:a 1019:( 1016:N 1002:N 985:1 981:} 979:ω 975:ω 944:. 936:2 928:= 902:ω 877:, 869:2 865:b 861:+ 858:b 855:a 847:2 843:a 838:= 832:2 828:b 821:4 818:3 812:+ 807:2 802:) 799:b 793:2 790:1 781:a 778:( 772:= 766:2 760:| 751:b 748:+ 745:a 741:| 708:. 697:) 694:d 691:b 685:d 682:a 679:+ 676:c 673:b 670:( 667:+ 664:) 661:d 658:b 652:c 649:a 646:( 643:= 640:) 632:d 629:+ 626:c 623:( 618:) 610:b 607:+ 604:a 601:( 583:c 573:a 555:. 549:0 546:= 543:1 540:+ 534:+ 529:2 510:ω 492:. 485:) 479:2 475:b 471:+ 468:b 465:a 457:2 453:a 448:( 444:+ 441:z 436:) 433:b 427:a 424:2 421:( 413:2 409:z 387:a 383:z 374:) 372:ω 370:( 368:Q 290:3 286:/ 279:2 276:i 272:e 268:= 263:2 257:3 252:i 249:+ 246:1 237:= 216:b 210:a 192:, 186:b 183:+ 180:a 177:= 174:z 130:) 124:( 119:) 115:( 105:· 98:· 91:· 84:· 57:. 31:. 20:)

Index

Eisenstein integers
List of topics named after Leonhard Euler § Euler's numbers

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mathematics
Gotthold Eisenstein
Leonhard Euler
complex numbers
integers
primitive
cube root of unity

triangular lattice
complex plane
Gaussian integers
square lattice
countably infinite set
commutative ring
algebraic integers
algebraic number field
cyclotomic field

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