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Talk:Sphenic number

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I don't think any source has done that for Sphenic numbers or mentioned the possibility so I don't think we should do it either. It's not common to do it for other sets than prime numbers. If we do it then it may seem like it should have some special significance for sphenic numbers but that is close
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it makes sense to me to have information about why notable alumni are notable but I wouldn't expect information completely unrelated to being an alumni listed, such as how many children they had, or where they were born. Information like that should be in the article about the person, and I feel the
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I object to Ams80 calling mathematical facts such as Catalan numbers and pentagonality "pointless trivia"; facts such as these are extremely relevant to articles about numbers. But I don't object to Ams80 removing those facts from this page, since those facts at least are stated in the pages on the
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I changed the part " ...because one of every four consecutive integers is divisible by 4..." to "...because one of every four consecutive integers (except the numbers ranging from -3 up to 3) is divisible by 4..." simply because the statement was incorrect, though I don't like this solution, can
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Is it quite right to say "Currently, the largest known sphenic number is i.e., the product of the three largest known Mersenne primes"? Would it not be better to say simply "Currently, the largest known sphenic number is i.e., the product of the three largest known primes" adding, if required
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distinct factors". Also if these are the only factors, we should say so as the article then implies they are: It says there are 8 factors of a sphenic number and then lists them. The definition is ambiguous. Anyway, I've "fixed" it and I hope it is correct!
377:. This seems a better solution to me. Sphenic numbers are defined as positive integers in the opening line. Limiting the argument to positive integers avoids an irrelevant discussion about negative numbers and the status of 0. 171:, is completely irrelevant to the topic of the page, that is why I viewed the entries as pointless trivia. I think that lists should only include information on the list elements if it is in some way relevant, for example at 166:
Maybe I should clarify, I didn't mean to say, and don't believe, that concepts such as Catalan numbers and pentagonality are "pointless trivia". What I meant to say was that, for example, the fact that 105 is
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I am formulating the definition to simply say "the product of three distinct prime numbers". I think this is short and clear. If anyone is in doubt anyway, the next sentence says squares are not allowed.
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I find it hard to believe they were copying wikipedia back in 1964, as that would create a timelike-loop somewhere along the road; but still where *they* got the term is very curious, if not odd... --
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same way about the numbers in this article, trivia unrelated to number x being a sphenic number should be in the article about number x (if anywhere). Just my opinions --
261:, meaning wedge. If one looks at the Greek delta (Δ) as a possible Greek conception of a wedge, it is not hard to conceive the origin of the connotation of the number 3. 306: 458: 130: 453: 229: 293:
Is this really a stub? It seems pretty much everything that can be said has been said (unless sphenic numbers have applications I'm not aware of).
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perhaps most to blame for this article title being used here. The source *I* had for the term is the Funk & Wagnalls Standard Dictionary (
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The main article could be improved if there were a chart showing how sphenic numbers occur when plotted out on a
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I changed it to " ...because one of every four consecutive positive integers is divisible by 4..."
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on Knowledge. If you would like to participate, please visit the project page, where you can join
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someone please create a better looking solution, or point out that the statement was correct?
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in Funk & Wagnalls, just included to catch other reference works pilfering from theirs. --
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I'm not sure anyone really knows the answer to this question, but the term comes from Gk
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Now I understand where you're coming from and I agree with you. Thanks for clarifying.
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cuts this down to 109, and many of those seem to be based on Knowledge. (sequence
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To be quite frank, I would love to know the precise etymology myself. I am
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There is a small, but non nil, chance that that was a
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gives 1,710 hits most of which are Knowledge clones.
101:, a collaborative effort to improve the coverage of 8: 307:the last paragraph of this fine mini-essay. 19: 47: 370:10:37, 8 Apr 2009 (West-European Time) 49: 7: 95:This article is within the scope of 38:It is of interest to the following 14: 459:Low-priority mathematics articles 115:Knowledge:WikiProject Mathematics 454:Start-Class mathematics articles 198:"(which are Mersenne primes)". 158:individual numbers in question. 118:Template:WikiProject Mathematics 82: 72: 51: 20: 361:Every four consecutive integers 135:This article has been rated as 319:00:19, 12 September 2011 (UTC) 284:06:22, 12 September 2011 (UTC) 1: 109:and see a list of open tasks. 439:12:57, 26 October 2009 (UTC) 419:08:43, 26 October 2009 (UTC) 355:15:00, 19 October 2006 (UTC) 311:Cimon Avaro; on a pogostick. 276:Cimon Avaro; on a pogostick. 266:07:09, 4 December 2006 (UTC) 232:) does not use the word. -- 339:10:24, 9 October 2006 (UTC) 300:20:39, 1 January 2006 (UTC) 203:21:23, 24 August 2006 (UTC) 475: 173:Trinity College, Cambridge 387:00:01, 9 April 2009 (UTC) 236:16:52, 29 Apr 2005 (UTC) 162:23:11, 14 Feb 2004 (UTC) 134: 67: 46: 191:17:18, 16 Feb 2004 (UTC) 180:00:10, 15 Feb 2004 (UTC) 141:project's priority scale 98:WikiProject Mathematics 28:This article is rated 246:International Edition 393:Connection with the 212:Where does the name 121:mathematics articles 329:Should say "three 325:Definition unclear 90:Mathematics portal 34:content assessment 427:original research 305:I concur, as per 155: 154: 151: 150: 147: 146: 466: 403:rectangular grid 272:Fictitious entry 253:User:Cimon avaro 227: 123: 122: 119: 116: 113: 92: 87: 86: 76: 69: 68: 63: 55: 48: 31: 25: 24: 16: 474: 473: 469: 468: 467: 465: 464: 463: 444: 443: 399: 363: 327: 291: 223: 210: 120: 117: 114: 111: 110: 88: 81: 61: 32:on Knowledge's 29: 12: 11: 5: 472: 470: 462: 461: 456: 446: 445: 442: 441: 398: 391: 390: 389: 362: 359: 358: 357: 336:Paul Beardsell 326: 323: 322: 321: 290: 287: 242: 241: 209: 206: 195: 194: 193: 192: 182: 181: 153: 152: 149: 148: 145: 144: 133: 127: 126: 124: 107:the discussion 94: 93: 77: 65: 64: 56: 44: 43: 37: 26: 13: 10: 9: 6: 4: 3: 2: 471: 460: 457: 455: 452: 451: 449: 440: 436: 432: 428: 423: 422: 421: 420: 416: 412: 411:216.99.198.25 408: 404: 396: 392: 388: 384: 380: 376: 373: 372: 371: 369: 360: 356: 352: 348: 343: 342: 341: 340: 337: 332: 324: 320: 316: 312: 308: 304: 303: 302: 301: 298: 294: 288: 286: 285: 281: 277: 273: 268: 267: 264: 260: 255: 254: 249: 247: 239: 238: 237: 235: 231: 226: 221: 218: 215: 207: 205: 204: 201: 200:Richard Pinch 190: 186: 185: 184: 183: 179: 174: 170: 165: 164: 163: 161: 142: 138: 132: 129: 128: 125: 108: 104: 100: 99: 91: 85: 80: 78: 75: 71: 70: 66: 60: 57: 54: 50: 45: 41: 35: 27: 23: 18: 17: 400: 364: 330: 328: 295: 292: 269: 258: 256: 250: 245: 243: 216:come from? 213: 211: 196: 168: 156: 137:Low-priority 136: 96: 62:Low‑priority 40:WikiProjects 431:PrimeHunter 407:Ulam spiral 395:Ulam spiral 379:PrimeHunter 347:PrimeHunter 112:Mathematics 103:mathematics 59:Mathematics 30:Start-class 448:Categories 331:of its own 368:Blodskaal 169:12-agonal 208:Sphenic? 189:PrimeFan 160:PrimeFan 297:Meekohi 248:1964). 234:Henrygb 228:in the 225:A007304 214:sphenic 139:on the 36:scale. 289:Stub? 263:Lself 259:sphen 178:Ams80 435:talk 415:talk 409:. 383:talk 351:talk 315:talk 309:-- 280:talk 230:OEIS 425:to 131:Low 450:: 437:) 429:. 417:) 385:) 353:) 317:) 282:) 433:( 413:( 397:? 381:( 349:( 313:( 278:( 143:. 42::

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the discussion
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PrimeFan
Trinity College, Cambridge
Ams80
PrimeFan
Richard Pinch
21:23, 24 August 2006 (UTC)


A007304
OEIS
Henrygb
User:Cimon avaro
Lself
07:09, 4 December 2006 (UTC)
Fictitious entry
Cimon Avaro; on a pogostick.
talk

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