Forum: Factoring
2022-05-11, 08:05
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Replies: 429
Views: 84,462
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Forum: Prime Gap Searches
2022-04-28, 07:13
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Replies: 110
Views: 31,606
primecert v2
Michiel had some excellent suggestions about updating the "primecert" column to more than
"C" - certified
"P" - probabilistic
"?" - unverified
In short they suggest adding, P (proven), D...
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Forum: Prime Gap Searches
2022-04-13, 06:30
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Replies: 110
Views: 31,606
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Forum: Prime Gap Searches
2022-04-11, 16:51
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Replies: 110
Views: 31,606
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Forum: Lone Mersenne Hunters
2022-04-11, 05:05
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Replies: 2,133
Views: 313,530
Found two factors for a TWOK candidate. one...
Found two factors for a TWOK candidate. one factor in stage one, one factor in stage two.
Both were missed by a 2003 P-1; both could be found with small B1, B2 so the large B2 from 30.8 was a little...
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Forum: Data
2022-04-07, 20:18
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Replies: 1,401
Views: 175,688
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Forum: Factoring
2022-04-03, 06:22
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Replies: 143
Views: 14,566
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Forum: Lone Mersenne Hunters
2022-03-26, 05:11
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Replies: 2,133
Views: 313,530
M19414627 has a factor:...
M19414627 has a factor: 259213687242140687678761255384193 (107.676 bits)
My largest factor in the last few months and it was found in stage 1 with B1=800,000!
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Forum: mersenne.ca
2022-03-25, 19:33
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Replies: 915
Views: 120,057
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Forum: mersenne.ca
2022-03-25, 19:20
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Replies: 915
Views: 120,057
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Forum: Software
2022-03-22, 03:03
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Replies: 583
Views: 42,517
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Forum: Data
2022-03-21, 21:21
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Replies: 1,401
Views: 175,688
I'm working on 19.4 But I'm a little worried.
...
I'm working on 19.4 But I'm a little worried.
I've completed 175 P-1 at B1=800K B2=780M which is roughly a 7.2% chance of factor (https://www.mersenne.ca/exponent/19400573). Accounting for the...
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Forum: Factoring
2022-03-17, 08:55
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Replies: 143
Views: 14,566
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Forum: GMP-ECM
2022-03-17, 08:42
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Replies: 517
Views: 146,202
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Forum: Factoring
2022-03-08, 20:46
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Replies: 143
Views: 14,566
TL;DR If you are still running B2 you should...
TL;DR If you are still running B2 you should probably set B1 for each t-level based on this chart (https://members.loria.fr/PZimmermann/records/ecm/params.html) then round number of curves to the...
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Forum: Factoring
2022-03-08, 06:53
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Replies: 143
Views: 14,566
This isn't documented anywhere, but if we talk...
This isn't documented anywhere, but if we talk through some good notes here I'll happily write them up and include them after the program runs. This is doing the same thing you are with runecmCGBN,...
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Forum: Factoring
2022-03-07, 22:43
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Replies: 143
Views: 14,566
You can run `./gpu_throughput_test.sh` from the...
You can run `./gpu_throughput_test.sh` from the gmp-ecm folder and it should test with many different multiples of the default (1/4x, 1/2x, 1x, 2x, 4x, 8x). If the default 1x curves is bad It takes...
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Forum: GMP-ECM
2022-03-07, 18:01
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Replies: 517
Views: 146,202
There's also some code under multiecm.c...
There's also some code under multiecm.c (https://gitlab.inria.fr/zimmerma/ecm/-/blob/master/multiecm.c) in gmp-ecm. I've never used it (I prefer Wraith's ecm.py), the header is
/* multiecm.c -...
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Forum: Factoring
2022-03-06, 23:51
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Replies: 143
Views: 14,566
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Forum: Factoring
2022-03-06, 19:26
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Replies: 143
Views: 14,566
"Getting" CGBN should be `git clone...
"Getting" CGBN should be `git clone https://github.com/NVlabs/CGBN.git` which will create a new directory "CGBN" then the commands chris2be8 wrote (thanks) should work.
I got access to contribute...
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Forum: Prime Gap Searches
2022-02-23, 06:30
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Replies: 110
Views: 31,606
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Forum: Data
2022-01-29, 10:00
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Replies: 108
Views: 6,144
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Forum: Software
2022-01-19, 21:01
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Replies: 583
Views: 42,517
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Forum: mersenne.ca
2022-01-13, 20:22
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Replies: 915
Views: 120,057
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Forum: Data
2022-01-13, 01:36
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Replies: 1,401
Views: 175,688
This is a non-issue, PRP is when the remaining...
This is a non-issue, PRP is when the remaining factor is probably prime implies there is already at least one factor known.
It's harder to avoid Mersenne primes where no factor exists (and no amount...
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