Forum: Software
2021-03-04, 14:32
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Replies: 6
Views: 375
Nostalgia indeed!
Here is (I think) a table...
Nostalgia indeed!
Here is (I think) a table of the most recent Riesel records at each level. First column is the cumulative number of primes, and the other columns represent the smallest n value...
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Forum: Software
2021-03-04, 10:37
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Replies: 6
Views: 375
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Forum: Software
2021-03-03, 18:28
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Replies: 6
Views: 375
Thank you for clarifying Dr S.
Very prime...
Thank you for clarifying Dr S.
Very prime sequences arise from "very prime numbers" also been referred to on this site as a VPN. All VPNs are a multiple of k (an integer) and M(p) where M(p) is...
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Forum: Software
2021-03-03, 13:59
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Replies: 6
Views: 375
Multithreading existing code
I am wondering if there are c programmers out there who could take a great piece of prime finding software and make it multi thread.
The software helps to find constant k such that the power...
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Forum: Prime Gap Searches
2021-02-20, 14:21
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Replies: 233
Views: 42,272
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Forum: Prime Gap Searches
2021-02-09, 14:38
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Replies: 233
Views: 42,272
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Forum: Prime Gap Searches
2021-02-07, 06:38
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Replies: 233
Views: 42,272
"No known gap larger with smaller start"
...
"No known gap larger with smaller start"
https://primegap-list-project.github.io/lists/prime-gaps-high-watermarks/
I'm not sure this list is correct - how can we have the middle of these -...
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Forum: Prime Gap Searches
2021-02-07, 06:30
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Replies: 233
Views: 42,272
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Forum: Prime Gap Searches
2021-02-04, 12:17
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Replies: 46
Views: 3,404
Hi Seth, a couple of questions
Do the...
Hi Seth, a couple of questions
Do the --prp-top-percent and --min-merit handles still work?
Will the program pick up automatically after either ctrl c is pressed, or the power outage, or...
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Forum: Prime Gap Searches
2021-02-03, 16:59
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Replies: 31
Views: 12,141
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Forum: Prime Gap Searches
2020-12-15, 17:19
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Replies: 46
Views: 3,404
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Forum: Prime Gap Searches
2020-12-13, 23:06
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Replies: 46
Views: 3,404
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Forum: Prime Gap Searches
2020-12-13, 12:34
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Replies: 46
Views: 3,404
Thanks Seth
Installed on my big machine -...
Thanks Seth
Installed on my big machine - effortless this time.
The last few questions for today question:
$ ./gap_test.py --unknown-filename 907_53970_1_10000_s15000_l1000M.txt...
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Forum: Prime Gap Searches
2020-12-13, 11:38
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Replies: 46
Views: 3,404
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Forum: Prime Gap Searches
2020-12-13, 10:57
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Replies: 46
Views: 3,404
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Forum: Prime Gap Searches
2020-12-11, 08:57
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Replies: 46
Views: 3,404
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Forum: Prime Gap Searches
2020-12-10, 18:06
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Replies: 46
Views: 3,404
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Forum: Prime Gap Searches
2020-12-10, 11:59
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Replies: 127
Views: 21,407
Hi henryzz
I think you are right, over the...
Hi henryzz
I think you are right, over the long run, deficient primorial offsets are not as efficient as defiicent primorials around the centre point, but they still provide a pretty sparse set of...
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Forum: Prime Gap Searches
2020-12-10, 09:47
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Replies: 46
Views: 3,404
Hi Seth
I don't know what software one needs...
Hi Seth
I don't know what software one needs to have, but searchers like me work in a Windows environment, or have the ability to emulate some other environments through a Windows shell.
Any...
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Forum: Prime Gap Searches
2020-12-05, 10:24
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Replies: 233
Views: 42,272
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Forum: Prime Gap Searches
2020-12-02, 08:00
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Replies: 233
Views: 42,272
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Forum: Prime Gap Searches
2020-11-28, 13:48
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Replies: 233
Views: 42,272
For very large gaps I used the sieve_primes...
For very large gaps I used the sieve_primes routine and then pfgw. Here is a ready to use perl program - clearly change your variables. It produces a pfgw-ready file.
#!/usr/bin/env perl
#...
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Forum: Puzzles
2020-11-28, 11:23
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Replies: 34
Views: 2,373
Got to love it.
The newspapers need to be...
Got to love it.
The newspapers need to be told - the World needs to know :alien:
I suggest the Daily Mail or the Sun in the UK, and Fox News for the telly. And the boys and girls in QAnon, and...
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Forum: Puzzles
2020-11-26, 11:01
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Replies: 34
Views: 2,373
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Forum: Prime Gap Searches
2020-11-14, 09:05
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Replies: 233
Views: 42,272
Cool!
The megagaps I found were based on a...
Cool!
The megagaps I found were based on a deep sieve of promising candidates (perl program) and pfgw for the intermediate composite checking. My largest gap (5m+) took three months to find.
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