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Forum: And now for something completely different 2021-11-14, 00:06
Replies: 56
Views: 9,624
Posted By paulunderwood
The same reasoning why a CPAP-11 has yet to be...

The same reasoning why a CPAP-11 has yet to be found: https://en.wikipedia.org/wiki/Primes_in_arithmetic_progression#Consecutive_primes_in_arithmetic_progression

I found precomputing the primorial...
Forum: And now for something completely different 2021-11-13, 23:23
Replies: 56
Views: 9,624
Posted By paulunderwood
Very nice! Did you use a lot of cycles sieving...

Very nice! Did you use a lot of cycles sieving and PRP'ing?
Forum: And now for something completely different 2021-09-25, 18:36
Replies: 56
Views: 9,624
Posted By paulunderwood
:shock: :shock: :shock: :shock: Should that...

:shock: :shock: :shock: :shock:

Should that not be n=-1..2? And...

a=5606879602425*2^1290000-1 and d=33*2^2939063-5606879602425*2^1290000

So a-d is negative :ermm:

a+d = 33*2^2939063 - 1
Forum: And now for something completely different 2021-09-24, 00:50
Replies: 56
Views: 9,624
Posted By paulunderwood
:bow: This is huge! Surely it will top the second...

:bow: This is huge! Surely it will top the second table for top20 APs (https://primes.utm.edu/top20/page.php?id=14), with almost unassailable points. Nice ingenuity!
Forum: And now for something completely different 2021-09-07, 10:43
Replies: 56
Views: 9,624
Posted By paulunderwood
Congrats, Peter, for this AP-6. I am looking...

Congrats, Peter, for this AP-6. I am looking forward to your submissions to the UTM top20 and JK Andersen's list.

:party:
Forum: And now for something completely different 2019-05-23, 02:10
Replies: 56
Views: 9,624
Posted By paulunderwood
Effectively, they are the same. :smile:

Effectively, they are the same. :smile:
Forum: And now for something completely different 2019-05-22, 02:44
Replies: 56
Views: 9,624
Posted By paulunderwood
Maybe someone else knows of one. Mark a.k.a,...

Maybe someone else knows of one. Mark a.k.a, rogue?
Forum: And now for something completely different 2019-05-20, 23:44
Replies: 56
Views: 9,624
Posted By paulunderwood
Ken Davis and I have found 5 AP9s over 1000...

Ken Davis and I have found 5 AP9s over 1000 digits. When searching for them we did not log AP4s. I found:

AP5 1,020,833,527
AP6 7,270,362
AP7 63,368
AP8 336
AP9 5
(Not disjoint.)

Here is...
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