Forum: Factoring
2021-01-30, 02:03
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Replies: 512
Views: 76,240
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Forum: Factoring
2021-01-11, 00:34
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Replies: 25
Views: 4,499
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Forum: Factoring
2021-01-04, 05:45
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Replies: 25
Views: 4,499
base 2 brilliant numbers
All found before November 2018.
2^305 + 47261 =
7316490771476709190807652965574102572379302277 *
8909346472058358236842543861359565227710116409
2^307 - 19027 =...
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Forum: Factoring
2020-12-30, 21:24
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Replies: 25
Views: 4,499
I have a Python web scraper that I use to check...
I have a Python web scraper that I use to check entries of the form n + c for varying c on factordb, though even filtering out composites which do not have a prime factor below 20M still generates...
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Forum: Factoring
2020-12-21, 02:25
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Replies: 25
Views: 4,499
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Forum: Lounge
2020-12-20, 05:45
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Replies: 1,663
Views: 68,777
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Forum: Lounge
2020-12-20, 05:38
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Replies: 23
Views: 1,951
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Forum: ONeil
2020-12-05, 08:15
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Replies: 8
Views: 427
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Forum: ONeil
2020-12-05, 07:54
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Replies: 8
Views: 427
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Forum: Puzzles
2020-11-26, 21:44
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Replies: 34
Views: 2,096
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Forum: Puzzles
2020-11-26, 21:29
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Replies: 34
Views: 2,096
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Forum: Puzzles
2020-11-26, 20:26
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Replies: 34
Views: 2,096
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Forum: Puzzles
2020-11-26, 18:53
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Replies: 34
Views: 2,096
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Forum: Lounge
2020-11-13, 05:12
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Replies: 23
Views: 1,951
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Forum: Lounge
2020-11-13, 04:50
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Replies: 447
Views: 24,045
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Forum: Lounge
2020-11-13, 04:38
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Replies: 302
Views: 29,283
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Forum: Lounge
2020-11-13, 04:26
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Replies: 23
Views: 1,951
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Forum: Math
2020-11-13, 04:09
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Replies: 3
Views: 594
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Forum: ONeil
2020-11-13, 03:43
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Replies: 18
Views: 1,192
print('''Warning: if you wish to be a prime...
print('''Warning: if you wish to be a prime number theorist, then you
have to realize, as the integers grow the prime gaps increase too! So
predicting prime numbers is near impossible at the very...
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Forum: Math
2020-11-13, 02:54
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Replies: 9
Views: 1,020
According to Theorem 1.2 in the paper, given a...
According to Theorem 1.2 in the paper, given a base-q, an integer s <= q^0.2875, and any base-q digits 0 <= a_1, ..., a_s <= q-1, there are infinitely many primes such that the base-q representation...
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Forum: Math
2020-11-13, 00:50
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Replies: 9
Views: 1,020
Hard recreational math problems
Are problems like these remotely solvable using known number theoretic methods?
1. Prove/disprove that there exists a square whose decimal representation contains only 0's and 1's and is not of...
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Forum: Factoring
2020-11-11, 22:59
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Replies: 512
Views: 76,240
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Forum: Lounge
2020-11-10, 14:57
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Replies: 2,066
Views: 83,748
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Forum: Lounge
2020-11-10, 14:44
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Replies: 1,663
Views: 68,777
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Forum: Factoring
2020-11-10, 04:04
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Replies: 40
Views: 13,669
I am reserving 10^199+c to find the smallest...
I am reserving 10^199+c to find the smallest 200-digit number which splits into p100*p100. Likely to take at least a few months with an expected 160+ SNFS factorizations, thought I'd at least post...
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