95:
85:
64:
33:
189:
This article is very biased towards the achievements of Arab mathematicians. I'm not saying that they didn't contribute a lot but it just reads like a defence of their contribtion rather than a objective article about the subject and its history. I would put up a banner at the top of the page saying
344:
The definition given seems to be the usual one, but seems to have a problem with primes. The sum of the proper divisors of any prime is 1 so all primes would be amicable, but they are not usually considered so (otherwise the first two sociable numbers would be 2 and 3). Should primes be specifically
284:
I added some of the information from
Mathworld and promoted to article to Start class. There is much more information that could be added from this source as well. The article on Thâbit's rule could also be expanded, however the article on Euler's rule has nothing new and could probably be merged
456:
I came to this article with the express hope that it could enlighten me in any way why I would care about these numbers. I see there is a distributed project to find them on boinc but why would anyone care to donate cpu cycles to such a project if the numbers themselves don't have any practical
285:
with this one. Given that the topic did rate an article in the 1911 EncyclopĂŚdia
Britannica and is the topic of several articles in Mathworld, and because of it's historical importance, I also raised the priority to Mid.--
173:"Also, every known pair shares at least one common factor": Isn't this obvious as 1 is always a common factor, or should it be at least two common factors? A nice homepage can be found under
151:
245:
I'm curious about the code and "pseudocode" in this article. This code doesn't add anything significant to the content: the algorithms are completely obvious from the definition of
440:
What is the significance of amicable numbers? Do they have any practical applications? Do they reveal any underlying science? Or are they just a trivial quirk of mathematics?
503:
141:
457:
uses? (As a counter example, another distributed search for
Optimal Golomb Rulers at least claims the numbers are useful for antenna arrangements.)
212:
There are, in particular, no proper references to specific pairs found by e.g. Ibn Qurra's formula. The article referenced in the linked article,
117:
498:
464:
447:
226:
213:
197:
311:
108:
69:
44:
325:
Who is "B. Nicolo I. Paganini"? This is clearly not the violinist and composer Niccolò Paganini, who died in 1840.
249:. Can anyone give a supporting argument for their presence? If not, I'll just go ahead and remove them. Cheers,
364:
7, therefore 7 is not an amicable number. None of the primes are, without needing to specifically exclude them.
468:
177:
451:
230:
201:
219:
On a separate note, there doesn't seem to be any contemporary evidence that
Pythagoras cared about these.
315:
50:
385:
350:
94:
460:
443:
307:
254:
222:
214:
https://www.ams.org/journals/mcom/1986-46-173/S0025-5718-1986-0815849-1/S0025-5718-1986-0815849-1.pdf
193:
409:
378:
Yes, sorry, brain fade. Should I remove the question, or leave it up for my perpetual embarrassment?
32:
330:
381:
346:
304:
Paganini is said to have made the discovery in 1860 and 1866. No doubt, his work took some time.
116:
on
Knowledge. If you would like to participate, please visit the project page, where you can join
100:
84:
63:
360:
How so? The sum of the proper divisors of 7 is 1, but the sum of the proper divisors of 1 is
290:
269:
420:
413:
398:
368:
250:
326:
492:
17:
480:
479:
No one said that they needed a practical use. It is to discover how the world is.
190:
that the neuterality of this article is disputed but I don't know how to do that.
286:
265:
113:
174:
417:
395:
365:
90:
483:
472:
425:
403:
389:
373:
354:
334:
319:
294:
273:
258:
234:
216:, does have some better references to secondary literature on this score.
205:
180:
26:
112:, a collaborative effort to improve the coverage of
394:Don't worry about it, we all have such moments.
416:- you may have been thinking of one of those.
8:
175:http://www.shyamsundergupta.com/amicable.htm
458:
441:
220:
58:
60:
30:
7:
106:This article is within the scope of
49:It is of interest to the following
25:
504:Low-priority mathematics articles
126:Knowledge:WikiProject Mathematics
129:Template:WikiProject Mathematics
93:
83:
62:
31:
146:This article has been rated as
1:
426:16:51, 11 November 2011 (UTC)
404:16:36, 11 November 2011 (UTC)
390:15:29, 11 November 2011 (UTC)
374:15:22, 11 November 2011 (UTC)
355:15:10, 11 November 2011 (UTC)
335:22:00, 10 February 2014 (UTC)
206:14:26, 18 December 2007 (UTC)
120:and see a list of open tasks.
499:C-Class mathematics articles
345:excluded in the definition?
295:17:14, 6 December 2008 (UTC)
274:16:55, 6 December 2008 (UTC)
235:15:59, 25 January 2021 (UTC)
181:09:54, 31 January 2007 (UTC)
454:) 09:52, 20 June 2019 (UTC)
320:11:27, 18 August 2009 (UTC)
520:
484:02:29, 11 March 2020 (UTC)
473:22:55, 10 March 2020 (UTC)
259:00:29, 18 June 2008 (UTC)
145:
78:
57:
152:project's priority scale
264:They've been deleted.--
109:WikiProject Mathematics
340:Gap in the definition?
39:This article is rated
178:Renger van Nieuwkoop
132:mathematics articles
18:Talk:Amicable number
101:Mathematics portal
45:content assessment
475:
463:comment added by
455:
446:comment added by
310:comment added by
237:
225:comment added by
208:
196:comment added by
166:
165:
162:
161:
158:
157:
16:(Redirected from
511:
322:
280:Recent additions
191:
134:
133:
130:
127:
124:
103:
98:
97:
87:
80:
79:
74:
66:
59:
42:
36:
35:
27:
21:
519:
518:
514:
513:
512:
510:
509:
508:
489:
488:
438:
423:
414:Friendly number
410:RuthâAaron pair
401:
371:
342:
305:
302:
282:
247:amicable number
243:
171:
131:
128:
125:
122:
121:
99:
92:
72:
43:on Knowledge's
40:
23:
22:
15:
12:
11:
5:
517:
515:
507:
506:
501:
491:
490:
487:
486:
465:24.156.255.250
437:
434:
433:
432:
431:
430:
429:
428:
421:
406:
399:
379:
369:
341:
338:
301:
298:
281:
278:
277:
276:
242:
239:
210:
187:
185:
170:
167:
164:
163:
160:
159:
156:
155:
144:
138:
137:
135:
118:the discussion
105:
104:
88:
76:
75:
67:
55:
54:
48:
37:
24:
14:
13:
10:
9:
6:
4:
3:
2:
516:
505:
502:
500:
497:
496:
494:
485:
482:
478:
477:
476:
474:
470:
466:
462:
453:
449:
448:79.235.254.69
445:
435:
427:
424:
419:
415:
411:
408:But see also
407:
405:
402:
397:
393:
392:
391:
387:
383:
380:
377:
376:
375:
372:
367:
363:
359:
358:
357:
356:
352:
348:
339:
337:
336:
332:
328:
323:
321:
317:
313:
309:
299:
297:
296:
292:
288:
279:
275:
271:
267:
263:
262:
261:
260:
256:
252:
248:
240:
238:
236:
232:
228:
227:96.230.129.52
224:
217:
215:
209:
207:
203:
199:
198:81.144.251.46
195:
186:
183:
182:
179:
176:
168:
153:
149:
143:
140:
139:
136:
119:
115:
111:
110:
102:
96:
91:
89:
86:
82:
81:
77:
71:
68:
65:
61:
56:
52:
46:
38:
34:
29:
28:
19:
459:â Preceding
442:â Preceding
439:
436:Significance
361:
343:
324:
312:86.137.170.8
303:
283:
246:
244:
221:â Preceding
218:
211:
188:
184:
172:
169:Old comments
148:Low-priority
147:
107:
73:Lowâpriority
51:WikiProjects
306:âPreceding
192:âPreceding
123:Mathematics
114:mathematics
70:Mathematics
493:Categories
251:Doctormatt
327:Jperrylsu
461:unsigned
444:unsigned
308:unsigned
300:Paganini
223:unsigned
194:unsigned
481:Bubba73
382:Digitig
347:Digitig
150:on the
41:C-class
287:RDBury
266:RDBury
47:scale.
418:OwenĂ
396:OwenĂ
366:OwenĂ
469:talk
452:talk
412:and
386:talk
351:talk
331:talk
316:talk
291:talk
270:talk
255:talk
241:Code
231:talk
202:talk
362:not
142:Low
495::
471:)
388:)
353:)
333:)
318:)
293:)
272:)
257:)
233:)
204:)
467:(
450:(
422:â
400:â
384:(
370:â
349:(
329:(
314:(
289:(
268:(
253:(
229:(
200:(
154:.
53::
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
