Forum: Factoring
2021-01-03, 00:20
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Replies: 507
Views: 70,646
L1513 finished
202-digit GNFS done locally
Tue Aug 4 13:05:29 2020 R0: -1028224595046037683938542391736748085046
Tue Aug 4 13:05:29 2020 R1: 4848130132767804170091793
Tue Aug 4 13:05:29 2020 A0:...
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Forum: Information & Answers
2020-11-17, 12:43
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Replies: 27
Views: 1,889
Did you (or prime.txt) do anything non-obvious...
Did you (or prime.txt) do anything non-obvious with assignment of CPU cores to workers? If the old system was running one worker on 012345 and the other on 6789ab, and that's stayed the same for the...
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Forum: Miscellaneous Math
2020-10-22, 13:33
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Replies: 6
Views: 714
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Forum: Miscellaneous Math
2020-10-22, 10:47
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Replies: 6
Views: 714
Primes made mostly of nines
10^10000 - 10^8668 - 1 is a pseudoprime; can I assert that it's prime because we've got a very boring factorisation of 86.68% of n+1 ?
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Forum: NFS@Home
2020-10-16, 08:30
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Replies: 20
Views: 2,183
L1510 complete
Fri Oct 16 06:41:07 2020 p93 factor: 768278079468147872006161615793478445262891405249833298882663471356153278846031859145179203921
Fri Oct 16 06:41:07 2020 p112 factor:...
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Forum: NFS@Home
2020-10-13, 14:58
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Replies: 112
Views: 16,777
L2004 complete
Tue Oct 13 14:12:17 2020 p82 factor: 5723280937158349169817962771791765516670683427993154997001889277215732479450609521
Tue Oct 13 14:12:17 2020 p167 factor:...
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Forum: NFS@Home
2020-10-11, 09:28
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Replies: 23
Views: 2,264
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Forum: NFS@Home
2020-10-10, 10:16
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Replies: 20
Views: 2,183
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Forum: NFS@Home
2020-10-09, 10:11
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Replies: 23
Views: 2,264
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Forum: NFS@Home
2020-10-09, 10:05
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Replies: 23
Views: 2,264
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Forum: NFS@Home
2020-10-06, 09:40
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Replies: 112
Views: 16,777
L2004 progress
Tue Oct 6 05:33:39 2020 matrix is 28895048 x 28895460 (12137.1 MB) with weight 2859316727 (98.95/col)
ETA is 15 October
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Forum: NFS@Home
2020-10-05, 11:36
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Replies: 20
Views: 2,183
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Forum: NFS@Home
2020-10-04, 20:29
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Replies: 23
Views: 2,264
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Forum: NFS@Home
2020-10-04, 20:24
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Replies: 20
Views: 2,183
That's interesting; the status page...
That's interesting; the status page https://escatter11.fullerton.edu/nfs/crunching_fs.php says there are 390 million relations, I only see 311875466 relations of which about 249650000 unique and...
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Forum: NFS@Home
2020-10-04, 10:11
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Replies: 20
Views: 2,183
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Forum: NFS@Home
2020-10-01, 09:01
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Replies: 112
Views: 16,777
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Forum: Factoring
2020-09-30, 16:03
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Replies: 40
Views: 11,032
The smallest 400-bit number with two 200-bit...
The smallest 400-bit number with two 200-bit prime factors is
0x98B1A3CA31877A7140FEFFA30608FBAB17232646BEC3BAA167 * 0xD699697AC5B27CD0A75D35F9E19320D82A4F4101B550C65E97 = 2^399+198081
(about...
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Forum: Abstract Algebra & Algebraic Number Theory
2020-09-27, 08:10
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Replies: 8
Views: 1,822
An oddity of this form
It's absolutely obvious in retrospect, but, looking at the results of a match-up-large-primes run, if we have t^2+1=pq then (t+kq)^2+1 will also be divisible by q; and we may occasionally be lucky...
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Forum: Msieve
2020-09-26, 22:53
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Replies: 2
Views: 1,082
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Forum: Abstract Algebra & Algebraic Number Theory
2020-09-21, 09:52
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Replies: 8
Views: 1,822
I'm not convinced that reducing it to 3^#S...
I'm not convinced that reducing it to 3^#S continued-fraction calculations is all that much of a reduction, but I suppose it's at least conclusive; Arndt has a reasonable efficient sieving process.
...
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Forum: Abstract Algebra & Algebraic Number Theory
2020-09-20, 20:09
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Replies: 8
Views: 1,822
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Forum: Factoring
2020-09-19, 21:21
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Replies: 40
Views: 11,032
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Forum: NFS@Home
2020-09-05, 09:18
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Replies: 55
Views: 5,532
Should I still be running my GNFS-20x Fibonacci...
Should I still be running my GNFS-20x Fibonacci numbers locally rather than trying to queue them up on _fs? I've upgraded the shed slightly (bargainhardware finally got cheap thoroughly-generic E5v3...
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Forum: GPU Computing
2020-08-23, 23:19
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Replies: 0
Views: 1,731
ECM performance on GTX2000-series
Has anyone got benchmark figures for gmp-ecm-gpu running on GTX2000-series hardware? My GTX1080Ti seems to have completely given up the ghost.
(though obviously I should be waiting for...
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Forum: chalsall
2020-07-18, 21:07
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Replies: 35
Views: 3,878
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