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Old 2010-09-05, 06:09   #7
Oddball
 
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May 2010

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Quote:
Originally Posted by mdettweiler View Post
I've tested the +1 counterpart with LLR:
Code:
24087*2^480410+1 is not prime.  Proth RES64: AE7A88466059DE19  Time : 502.930 sec.
Oddball, does this match what you got in your run?
It does, and the 82887*2^480670+1 result matches too:

24087*2^480410-1 is prime! Time : 316.434 sec.
24087*2^480410+1 is not prime. Proth RES64: AE7A88466059DE19 Time : 395.138 sec.
82887*2^480670-1 is prime! Time : 318.517 sec.
82887*2^480670+1 is not prime. Proth RES64: 327EF446F7869E7B Time : 407.312 sec.

For some strange reason, the +1 side requires a longer FFT length (and therefore a longer testing time) than the -1 side.
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