Forum: GIMPS Board of Directors News
2021-02-23, 20:32
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Replies: 12
Views: 10,188
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Forum: Operation Billion Digits
2021-02-18, 06:19
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Replies: 28
Views: 13,733
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Forum: Operation Billion Digits
2021-02-16, 15:03
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Replies: 28
Views: 13,733
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Forum: GPU Computing
2020-12-26, 15:31
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Replies: 3,464
Views: 349,775
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Forum: GPU Computing
2020-12-05, 03:37
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Replies: 3,464
Views: 349,775
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Forum: Operation Billion Digits
2020-12-03, 04:44
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Replies: 28
Views: 13,733
Perhaps I should say fully factored...to the...
Perhaps I should say fully factored...to the optimal 91 bit depth! :smile: A factor would at least avoid the arduous P-1 and PRP tests, but those will also be an interesting challenge.
I was lucky...
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Forum: Operation Billion Digits
2020-12-02, 02:25
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Replies: 28
Views: 13,733
I went ahead and took the liberty of reserving...
I went ahead and took the liberty of reserving that exponent to 91 bits. It's a comparatively slow 100 days on my GTX 1080, but it will be good to have an exponent fully factored. I will check my...
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Forum: Operation Billion Digits
2020-10-30, 19:36
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Replies: 28
Views: 13,733
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Forum: Operation Billion Digits
2020-10-30, 03:25
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Replies: 28
Views: 13,733
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Forum: Operation Billion Digits
2020-10-12, 22:10
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Replies: 28
Views: 13,733
Thanks Ken for the feedback in the last two...
Thanks Ken for the feedback in the last two posts. It will be interesting to see if Team Red can match the new Nvidia RTX A6000 (https://www.nvidia.com/en-us/design-visualization/quadro/rtx-a6000/)...
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Forum: Operation Billion Digits
2020-09-17, 13:57
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Replies: 28
Views: 13,733
Thanks kriesel for the insight in the last two...
Thanks kriesel for the insight in the last two posts. I am interested to see if we can get a P-1 or PRP test going on an exponent once we get one TFed to 91 bits. Perhaps I could be tempted to get a...
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Forum: Operation Billion Digits
2019-06-22, 03:48
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Replies: 1,172
Views: 108,427
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Forum: Operation Billion Digits
2018-09-16, 10:22
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Replies: 1,172
Views: 108,427
no factor for M3321928171 from 2^85 to 2^86...
no factor for M3321928171 from 2^85 to 2^86 [mfaktc 0.21 barrett87_mul32_gs]
As mentioned in the previous post, I'll notify Will and James. This will move us to level 19.07, the first progress...
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Forum: Operation Billion Digits
2018-08-16, 22:58
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Replies: 1,172
Views: 108,427
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Forum: Operation Billion Digits
2018-08-05, 15:36
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Replies: 846
Views: 74,090
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Forum: Operation Billion Digits
2018-08-05, 02:07
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Replies: 846
Views: 74,090
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Forum: Lounge
2018-08-05, 02:06
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Replies: 27
Views: 3,555
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Forum: Operation Billion Digits
2018-08-03, 22:03
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Replies: 846
Views: 74,090
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Forum: Operation Billion Digits
2018-08-02, 19:54
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Replies: 28
Views: 13,733
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Forum: Operation Billion Digits
2018-07-28, 02:42
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Replies: 28
Views: 13,733
Thanks all for the responses.
...
Thanks all for the responses.
Interestingly, according to the following link, factoring to 91 bits would require over 150K GHz-days of computation, while a LL test requires only 91K:
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Forum: Operation Billion Digits
2018-07-27, 00:00
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Replies: 28
Views: 13,733
Factoring to 87 bits
I've been thinking that in order to revive this project a bit, it might be good to get candidates up to 87 bits, as there are currently six that are at 86 bits and according to mersenne.ca (link...
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Forum: Lone Mersenne Hunters
2018-04-16, 05:11
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Replies: 2
Views: 4,572
Oddities in large P-1 candidates
Out of curiosity and audacity, I decided to look at the largest candidates (https://www.mersenne.org/report_exponent/?exp_lo=595799933&exp_hi=595800000&full=1) within Prime95's spectrum (<595.8M)....
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Forum: News
2018-01-20, 04:26
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Replies: 505
Views: 92,306
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Forum: Operation Billion Digits
2017-09-12, 01:34
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Replies: 574
Views: 53,984
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Forum: Analysis & Analytic Number Theory
2017-05-22, 15:11
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Replies: 4
Views: 5,371
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