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Old 2021-11-08, 05:43   #298
Grotex
 
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"Jiahao He"
May 2018
China

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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)
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Old 2021-11-08, 08:33   #299
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"Jiahao He"
May 2018
China

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

Release base 970.
Reserve base 1318 to n=10k.
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Old 2021-11-10, 06:17   #300
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Originally Posted by Grotex View Post
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.
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Old 2021-11-12, 09:12   #301
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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)
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Old 2021-11-12, 09:13   #302
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Release base 1484.
Reserve base 1992 to n=10k.
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Old 2021-11-23, 07:15   #303
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Release base 1484.
Reserve base 1992 to n=10k.
Done.
No primes.
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Old 2022-01-13, 15:40   #304
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Base 10 is at n = 208.2 k, no primes found, continuing...
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Old 2022-02-14, 13:53   #305
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Base 10 is at n = 223.2 k, no primes found, continuing. Tests are taking just under 35 minutes to complete on 3 cores of a i5-6400.
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Old 2022-03-13, 03:45   #306
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Any ranges open?
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Old 2022-03-13, 04:13   #307
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Originally Posted by birtwistlecaleb View Post
Any ranges open?
Almost all of them. See here:
https://www.rieselprime.de/ziki/Carol-Kynea_table
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Old 2022-03-13, 09:49   #308
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Reserve base 146 to n=20k
What seiving application supports Carol and Kyena numbers, the +2s make it impossible to sieve on NewPgen.
Edit 2: gonna use probable prime testing for the numbers with yafu instead
Last fiddled with by birtwistlecaleb on 2022-03-13 at 10:34
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