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2020-06-09, 17:56   #254
gd_barnes

May 2007
Kansas; USA

5×2,099 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

23 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, 235 views)

2020-06-11, 08:01   #257
dacat

May 2020

108 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, 220 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, 223 views)

 2020-10-06, 14:46 #259 Dylan14     "Dylan" Mar 2017 32·5·13 Posts Reserving base 10 to 200k. Also formally unreserving base 2 (was shown as being unreserved a while ago on NPLB, but was still shown as reserved to me on the PrimeWiki.)
 2020-11-02, 19:33 #260 Dylan14     "Dylan" Mar 2017 32·5·13 Posts Update 11/2 Base 10 at 130k, no primes found, continuing...
 2020-12-02, 14:25 #261 Dylan14     "Dylan" Mar 2017 32×5×13 Posts Update 12/2 Base 10 is at n = 150.7k, no primes found, continuing...
 2021-03-06, 17:16 #262 kuratkull     Mar 2007 Estonia 14410 Posts I'm reserving base 42 to 100k with the intent to take it further if all goes well.
 2021-03-07, 22:40 #263 gd_barnes     May 2007 Kansas; USA 101000111111112 Posts Karsten, Are you still working on bases 290, 362, 1286, and 1346 ? If so, can you give us a status ?
 2021-03-15, 13:23 #264 Dylan14     "Dylan" Mar 2017 10010010012 Posts 3/15 update Base 10 at n = 162k, no primes found, continuing... Also reserving base 832 to n = 25k.

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