mersenneforum.org Carol / Kynea Coordinated Search - Reservations
 Register FAQ Search Today's Posts Mark Forums Read

2021-11-08, 05:43   #298
Grotex

"Jiahao He"
May 2018
China

1111002 Posts

Quote:
 Originally Posted by Grotex Reserve base 970 to n=10k
Testing n=9697.
(970^3899-1)^2-2 is proven prime.
Quote:
 Primality testing (970^3899-1)^2-2 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 3, base 1+sqrt(3) Generic modular reduction using generic reduction FMA3 FFT length 8K, Pass1=128, Pass2=64, clm=2 on A 77371-bit number Calling Brillhart-Lehmer-Selfridge with factored part 44.96% (970^3899-1)^2-2 is prime! (57.3576s+0.0391s)

2021-11-08, 08:33   #299
Grotex

"Jiahao He"
May 2018
China

22×3×5 Posts

Quote:
 Originally Posted by Grotex Reserve base 970 to n=10k
Done.
Only 1 prime:
(970^3899-1)^2-2

Release base 970.
Reserve base 1318 to n=10k.

2021-11-10, 06:17   #300
Grotex

"Jiahao He"
May 2018
China

22×3×5 Posts

Quote:
 Originally Posted by Grotex Done. Only 1 prime: (970^3899-1)^2-2 Release base 970. Reserve base 1318 to n=10k.
Base 1318 Done.
No primes.

Release base 1318.
Reserve base 1484 to n=10k.

2021-11-12, 09:12   #301
Grotex

"Jiahao He"
May 2018
China

22·3·5 Posts

Quote:
 Originally Posted by Grotex Base 1318 Done. No primes. Release base 1318. Reserve base 1484 to n=10k.
Base 1484 done.
Only 1 prime:
(1484^9606+1)^2-2
Quote:
 Primality testing (1484^9606+1)^2-2 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 5, base 1+sqrt(5) Generic modular reduction using generic reduction FMA3 FFT length 20K, Pass1=320, Pass2=64, clm=4 on A 202404-bit number Calling Brillhart-Lehmer-Selfridge with factored part 40.51% (1484^9606+1)^2-2 is prime! (329.5672s+0.1762s)

 2021-11-12, 09:13 #302 Grotex     "Jiahao He" May 2018 China 3C16 Posts Release base 1484. Reserve base 1992 to n=10k.
2021-11-23, 07:15   #303
Grotex

"Jiahao He"
May 2018
China

22×3×5 Posts

Quote:
 Originally Posted by Grotex Release base 1484. Reserve base 1992 to n=10k.
Done.
No primes.

 2022-01-13, 15:40 #304 Dylan14     "Dylan" Mar 2017 22·3·72 Posts Base 10 is at n = 208.2 k, no primes found, continuing...

 Similar Threads Thread Thread Starter Forum Replies Last Post rogue And now for something completely different 253 2021-10-15 08:39 rogue And now for something completely different 37 2016-06-18 17:58 science_man_88 Lounge 10 2010-12-13 23:26 opyrt Prime Sierpinski Project 3 2009-03-26 19:51 Kosmaj Riesel Prime Search 7 2007-07-13 22:15

All times are UTC. The time now is 15:56.

Wed Jan 19 15:56:31 UTC 2022 up 180 days, 10:25, 1 user, load averages: 1.25, 1.43, 1.55