Forum: Puzzles
2020-04-02, 17:09
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Replies: 27
Views: 12,716
See Terry Tao's blogpost...
See Terry Tao's blogpost (https://terrytao.wordpress.com/2010/04/10/the-euler-maclaurin-formula-bernoulli-numbers-the-zeta-function-and-real-variable-analytic-continuation/) regarding such...
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Forum: Puzzles
2020-03-27, 13:09
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Replies: 27
Views: 12,716
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Forum: Miscellaneous Math
2020-02-10, 11:12
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Replies: 17
Views: 4,683
Simple heuristic argument: the "binary...
Simple heuristic argument: the "binary complement" operation roughly divides a number by 4 on average (integrate log((1-a)/(1+a)) on [0,1] gives -2log2), so most starting numbers "should" converge to...
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Forum: FactorDB
2020-01-21, 18:15
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Replies: 1,627
Views: 199,279
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Forum: Math
2019-12-16, 20:42
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Replies: 2
Views: 4,425
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Forum: FactorDB
2019-06-23, 20:47
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Replies: 561
Views: 105,516
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Forum: FactorDB
2019-06-18, 14:47
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Replies: 180
Views: 59,115
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Forum: And now for something completely different
2019-06-18, 10:27
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Replies: 164
Views: 36,092
Primo/FastECPP reservation thread
This thread is made following the suggestion of Paul Underwood in this post (https://www.mersenneforum.org/showpost.php?p=519485&postcount=100), as a place of reserving large PRPs for ECPP testing.
...
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Forum: Prime Wiki
2019-05-18, 14:57
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Replies: 6
Views: 3,613
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Forum: FactorDB
2019-05-05, 20:31
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Replies: 180
Views: 59,115
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Forum: Aliquot Sequences
2019-04-25, 13:31
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Replies: 1,031
Views: 138,117
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Forum: Software
2019-04-11, 19:54
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Replies: 8
Views: 1,289
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Forum: Software
2019-04-11, 17:14
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Replies: 8
Views: 1,289
PFGW scripting help
I'm writing a small PFGW script, and ran into a problem where I cannot use
expressions with functions in it. A minimal working example:
SCRIPT
DIM nn,U(130021)
PRP nn
END
throws a "***...
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Forum: Math
2019-04-08, 08:34
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Replies: 0
Views: 1,920
On the final divisor test in APR-CL
So I'm planning to run an hybrid N-1/APRCL test on a 21k digit PRP (specifically, Phi(32481,10) where N-1 has been factored to ~20%). I have several question regarding the choice of parameters and...
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Forum: Aliquot Sequences
2019-04-07, 14:47
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Replies: 1,031
Views: 138,117
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Forum: Aliquot Sequences
2019-03-20, 17:23
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Replies: 3,685
Views: 432,648
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Forum: Aliquot Sequences
2019-03-19, 20:11
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Replies: 3,685
Views: 432,648
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Forum: Factoring
2019-03-18, 18:58
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Replies: 9
Views: 3,402
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Forum: Aliquot Sequences
2019-03-18, 18:13
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Replies: 3,685
Views: 432,648
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Forum: Aliquot Sequences
2019-03-15, 10:20
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Replies: 3,685
Views: 432,648
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Forum: Factoring
2019-03-14, 09:15
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Replies: 6
Views: 1,520
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Forum: Aliquot Sequences
2019-03-13, 17:42
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Replies: 3,685
Views: 432,648
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Forum: FactorDB
2019-03-08, 18:32
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Replies: 5
Views: 8,661
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Forum: FactorDB
2019-03-08, 13:59
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Replies: 5
Views: 8,661
Spammers in FactorDB
As we know, lots of nonsensical composites are being added to the database every hour, overwhelming the factorisation workers and has pushed the total number of <120 digit composites up to 900K. I've...
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Forum: Aliquot Sequences
2019-03-07, 10:55
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Replies: 3,685
Views: 432,648
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