Forum: Miscellaneous Math
2015-12-28, 10:44
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Replies: 2
Views: 801
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Forum: Factoring
2015-03-18, 23:31
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Replies: 1
Views: 629
YAFA
https://groups.google.com/forum/#!topic/sci.math/Xr2oHM5RPe0
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Forum: Computer Science & Computational Number Theory
2013-06-13, 03:55
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Replies: 59
Views: 13,579
Hi again yoyo et al.
I'd like to mention 3...
Hi again yoyo et al.
I'd like to mention 3 things:
(1) If you're using an ECPP prover with factordb.com ( sounds like a cool idea, btw) you don't actually need to fully certify each PRP, just the...
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Forum: FactorDB
2013-05-13, 09:48
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Replies: 156
Views: 26,984
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Forum: FactorDB
2013-04-27, 20:43
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Replies: 156
Views: 26,984
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Forum: FactorDB
2013-04-27, 20:26
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Replies: 156
Views: 26,984
Thanks for that output, which looks correct....
Thanks for that output, which looks correct. (though you can also run with the -q rather than -Q if you want a little more detail)
I would (vaguely) suggest -B 2000 for any number under 1000-digits...
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Forum: FactorDB
2013-04-27, 16:59
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Replies: 156
Views: 26,984
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Forum: FactorDB
2013-04-27, 10:48
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Replies: 156
Views: 26,984
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Forum: GPU Computing
2013-04-25, 06:59
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Replies: 54
Views: 4,000
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Forum: FactorDB
2013-04-24, 16:30
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Replies: 156
Views: 26,984
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Forum: Lounge
2013-02-21, 15:20
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Replies: 11
Views: 790
Seriously, tho, you just might be the right...
Seriously, tho, you just might be the right person to ask:
I've just kegged my first home brew - from a St. Peter's Ruby Red kit.
I was a little concerned because the bubbler never fully bubbled...
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Forum: Lounge
2013-02-21, 15:05
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Replies: 11
Views: 790
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Forum: Lounge
2013-02-21, 08:33
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Replies: 11
Views: 790
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Forum: Lounge
2013-02-20, 17:08
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Replies: 11
Views: 790
You (davieddy) were my old A-level physics...
You (davieddy) were my old A-level physics teacher! [we have since then briefly spoken by PM].
Though since I gather you're a dark-bluer, you're of course a sworn enemy of a light-bluer like me (and...
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Forum: YAFU
2012-11-14, 14:43
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Replies: 23
Views: 4,090
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Forum: YAFU
2012-11-14, 08:16
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Replies: 23
Views: 4,090
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Forum: YAFU
2012-11-13, 18:34
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Replies: 23
Views: 4,090
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Forum: YAFU
2012-11-12, 16:10
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Replies: 23
Views: 4,090
Couple more observations (hopefully!)
1) I...
Couple more observations (hopefully!)
1) I imagine one could could equally well attack the number from the LSB (rather than) MSB end
2) To remove the restriction on semiprimes, pad with zeroes, and...
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Forum: YAFU
2012-11-12, 14:48
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Replies: 23
Views: 4,090
Interesting question. (don't know whether it's...
Interesting question. (don't know whether it's homework or not! :) )
If one knows definitely in advance that there are exactly two factors of the same length (ie it's a semiprime), then it might be...
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Forum: Puzzles
2012-07-16, 12:44
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Replies: 216
Views: 40,752
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Forum: Programming
2012-07-13, 20:43
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Replies: 17
Views: 1,265
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Forum: Programming
2012-07-12, 15:26
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Replies: 17
Views: 1,265
Interesting... let us know how it goes...
So I...
Interesting... let us know how it goes...
So I looked up Proth's theorem on Wikipedia, somehow not having come across it before, and regrettably there wasn't a proof there, but:
Incidentally, I...
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Forum: Math
2012-02-03, 10:54
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Replies: 10
Views: 878
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Forum: Math
2012-02-03, 10:39
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Replies: 10
Views: 878
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Forum: Math
2012-02-03, 10:37
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Replies: 10
Views: 878
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