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Old 2011-02-18, 17:51   #3
nuggetprime's Avatar
Mar 2007

4568 Posts

Normally,LLR outputs when it can't prove a number prime:
Starting probable prime test of 2^21954+77899
2^21954+77899 is base 3-Strong Fermat PRP!  Time : 1.728 sec.
Starting Lucas sequence
2^21954+77899 is Lucas PRP, Starting Frobenius test sequence
 2^21954+77899 is Frobenius PRP! (P = 4, Q = 2, D = 8)  Time : 6.928 sec.
But for 10^500+961 it doesn't run a Lucas or Frobenius sequence and instead says the number is not prime.
So I think it really is a bug.

Last fiddled with by nuggetprime on 2011-02-18 at 17:53
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