Forum: And now for something completely different
2022-05-12, 08:59
|
Replies: 331
Views: 62,574
|
Forum: Riesel Prime Search
2022-04-24, 23:05
|
Replies: 474
Views: 69,986
What another mess!
Stopping one k-value and...
What another mess!
Stopping one k-value and beginning another, again not from n=1 (although the primes for k=16545165 for n<10k are already known) and also missing your posted prime...
|
Forum: Riesel Prime Search
2022-04-22, 22:35
|
Replies: 11
Views: 1,059
|
Forum: Riesel Prime Search
2022-04-22, 00:12
|
Replies: 455
Views: 95,057
|
Forum: Riesel Prime Search
2022-04-22, 00:10
|
Replies: 11
Views: 1,059
|
Forum: Aliquot Sequences
2022-04-21, 09:34
|
Replies: 194
Views: 8,661
|
Forum: Aliquot Sequences
2022-04-14, 13:28
|
Replies: 1,605
Views: 187,488
|
Forum: Aliquot Sequences
2022-04-07, 10:04
|
Replies: 194
Views: 8,661
|
Forum: Prime Wiki
2022-04-04, 12:06
|
Replies: 203
Views: 78,682
|
Forum: Aliquot Sequences
2022-04-04, 11:31
|
Replies: 194
Views: 8,661
|
Forum: Prime Wiki
2022-04-01, 11:35
|
Replies: 203
Views: 78,682
|
Forum: Riesel Prime Search
2022-04-01, 11:30
|
Replies: 455
Views: 95,057
|
Forum: Aliquot Sequences
2022-03-31, 14:57
|
Replies: 194
Views: 8,661
|
Forum: Prime Wiki
2022-03-30, 18:23
|
Replies: 203
Views: 78,682
I've updated the extension ExternalData to the...
I've updated the extension ExternalData to the newest version, but this did not eliminated the error.
I've inserted into the mime.types file of the MediaWiki source the line
application/csv csv
...
|
Forum: Aliquot Sequences
2022-03-24, 15:59
|
Replies: 194
Views: 8,661
|
Forum: Computer Science & Computational Number Theory
2022-03-21, 13:09
|
Replies: 57
Views: 26,887
|
Forum: MattcAnderson
2022-02-25, 11:40
|
Replies: 7
Views: 368
|
Forum: MattcAnderson
2022-02-22, 08:45
|
Replies: 16
Views: 1,606
Please try yafu...
Please try yafu ('https://www.mersenneforum.org/forumdisplay.php?f=96'), for such small numbers, it only needs a few seconds to calculate the factorization.
|
Forum: MattcAnderson
2022-02-14, 14:53
|
Replies: 9
Views: 367
|
Forum: MattcAnderson
2022-02-14, 13:13
|
Replies: 9
Views: 367
|
Forum: Riesel Prime Search
2022-02-12, 22:15
|
Replies: 474
Views: 69,986
|
Forum: Aliquot Sequences
2022-01-19, 11:35
|
Replies: 1,605
Views: 187,488
|
Forum: Conjectures 'R Us
2022-01-13, 15:51
|
Replies: 2,414
Views: 247,098
R255
Status:
Current n-value: 53873
Candidates remaining to n=100k: ~761,000
Primes found so far (n=25000-53873): 126 (see att.)
-> 371 k's left from 497
|
Forum: Proth Prime Search
2021-12-02, 08:04
|
Replies: 14
Views: 21,553
|
Forum: And now for something completely different
2021-12-01, 17:39
|
Replies: 9
Views: 2,541
17*18^19-1 is not prime, so your b is 19...
17*18^19-1 is not prime, so your b is 19 ('https://www.rieselprime.de/ziki/Williams_prime_MM_19') not 18. Same for b=5 and b=2 is also a prime for the first form.
So:
(b-1)*b^(b+1) - 1 is prime...
|