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2020-06-09, 17:56   #254
gd_barnes

May 2007
Kansas; USA

100111110000002 Posts

Quote:
 Originally Posted by dacat Base 156 from 20k - 30k was completed. Found (156^24434+1)^2-2 is prime (107174 digits) Found (156^27423+1)^2-2 is prime (120285 digits)

The base was previously only searched to n=10k. Did you search n=10k-20k ?

2020-06-10, 07:35   #255
dacat

May 2020

816 Posts

Quote:
 Originally Posted by gd_barnes The base was previously only searched to n=10k. Did you search n=10k-20k ?
Good point, I thought I did but I can no longer find the sieve file to verify so I'll do it again.

2020-06-10, 07:37   #256
dacat

May 2020

23 Posts

Base 158 from 30 - 40k finished.

Found (158^33873-1)^2-2 is prime (148,951 digits)

I'll continue on base 158 from 40-50k
Attached Files
 ck_158.pfgw.txt (17.7 KB, 16 views)

2020-06-11, 08:01   #257
dacat

May 2020

23 Posts

Quote:
 Originally Posted by gd_barnes The base was previously only searched to n=10k. Did you search n=10k-20k ?
To close the loop here, I finished searching base 156 from 10 - 20k and no primes were found.
Attached Files
 ck_156.pfgw.txt (14.3 KB, 15 views)

2020-06-20, 03:13   #258
dacat

May 2020

23 Posts

Finished searching base 158 from 40-50k but found no primes.

I'll release the reservation on 158 here thanks.
Attached Files
 ck_158.pfgw.txt (17.1 KB, 11 views)

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