Forum: No Prime Left Behind
2021-02-27, 20:49
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Replies: 1,494
Views: 181,501
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Forum: No Prime Left Behind
2021-02-26, 08:50
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Replies: 1,494
Views: 181,501
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Forum: No Prime Left Behind
2021-02-20, 20:50
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Replies: 1,494
Views: 181,501
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Forum: Conjectures 'R Us
2021-02-19, 09:30
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Replies: 299
Views: 48,246
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Forum: Conjectures 'R Us
2021-02-15, 10:59
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Replies: 906
Views: 94,058
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Forum: Conjectures 'R Us
2021-02-15, 03:21
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Replies: 906
Views: 94,058
...and just like that...
Even bigger news...
...and just like that...
Even bigger news from Ryan Propper:
2293*2^12918431-1 is prime!!
See: https://primes.utm.edu/primes/page.php?id=131882
So...within less than a week of each other...
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Forum: No Prime Left Behind
2021-02-15, 03:00
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Replies: 251
Views: 61,947
Due to PrimeGrid's "Tour de Primes" for all of...
Due to PrimeGrid's "Tour de Primes" for all of the month of February they are finding a tremendous number of top-5000 primes. (~15-20 per day!) For that reason our leading edge for the 14th drive...
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Forum: No Prime Left Behind
2021-02-15, 02:46
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Replies: 1,494
Views: 181,501
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Forum: Riesel Prime Search
2021-02-15, 00:59
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Replies: 1,021
Views: 123,520
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Forum: Riesel Prime Search
2021-02-14, 12:56
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Replies: 1,021
Views: 123,520
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Forum: Riesel Prime Search
2021-02-13, 21:43
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Replies: 1,021
Views: 123,520
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Forum: Riesel Prime Search
2021-02-13, 21:38
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Replies: 1,021
Views: 123,520
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Forum: Riesel Prime Search
2021-02-13, 01:50
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Replies: 1,021
Views: 123,520
Status on follow ups:
I got a PM response...
Status on follow ups:
I got a PM response from Chaos. He is going to keep k=213. I have asked him to report his search depth here. He has reported several top-5000 primes for n>2M. I let him...
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Forum: Conjectures 'R Us
2021-02-12, 22:01
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Replies: 906
Views: 94,058
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Forum: Riesel Prime Search
2021-02-12, 21:48
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Replies: 1,021
Views: 123,520
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Forum: Conjectures 'R Us
2021-02-12, 13:18
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Replies: 906
Views: 94,058
Big news from PrimeGrid:
9221*2^11392194-1...
Big news from PrimeGrid:
9221*2^11392194-1 is prime!!
See: https://primes.utm.edu/primes/page.php?id=131777
This was the 2nd smallest k remaining on the Riesel base 2 effort. Only k=2293...
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Forum: Riesel Prime Search
2021-02-12, 10:16
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Replies: 68
Views: 14,994
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Forum: Riesel Prime Search
2021-02-11, 22:42
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Replies: 1,021
Views: 123,520
I did a due diligence on them:
k=213...
I did a due diligence on them:
k=213 reserved by Chaos13; last status on this k 2014-02-28; last prime reported on this k 2017-07-18; last time posting at RPS 2014-04-28; last known activity on...
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Forum: Riesel Prime Search
2021-02-11, 08:52
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Replies: 1,021
Views: 123,520
Reserving k=213, 221, 255, and 285 to n=2M.
...
Reserving k=213, 221, 255, and 285 to n=2M.
These k's are reserved but last had a status report over 6 years ago. The last prime reported on any of them was nearly 4 years ago. Apparently they...
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Forum: Conjectures 'R Us
2021-02-06, 00:33
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Replies: 1,081
Views: 88,996
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Forum: Conjectures 'R Us
2021-02-05, 22:00
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Replies: 1,081
Views: 88,996
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Forum: Aliquot Sequences
2021-02-01, 02:40
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Replies: 3,401
Views: 301,757
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Forum: Conjectures 'R Us
2021-01-31, 22:48
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Replies: 2,257
Views: 184,188
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Forum: Conjectures 'R Us
2021-01-28, 10:08
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Replies: 83
Views: 29,423
Why?
The current tests that we had in there...
Why?
The current tests that we had in there for base 2/4 were at n=6.65M or ~2M digits. It got little to no interest for the last several years.
3677878*3^n-1 is at n=5M, which is ~2.385M...
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Forum: Conjectures 'R Us
2021-01-28, 07:36
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Replies: 83
Views: 29,423
The server has dried out after the effort was...
The server has dried out after the effort was completed to n=6.65M.
Riesel/Sierp base 2/4 even-odd k-n will now be turned over to BOINC. It will be started after additional sieving is completed...
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