<<Please forgive me. I'm terribly sorry. I've discovered a bug in version 17 of prime95 and its variants (ntprime, mprime, OS/2 version). All Lucas-Lehmer tests above 4,194,304 (except those that were done as a continuation of a v16 run) are no good. I feel sick.>> Can you give us details on this bug and exactly why it starts affecting exponents above that 4-mil number? (Augh - this means I've only tested one number correctly). I'm very curious. <<My records indicate that 10,794 of the 59,169 Lucas-Lehmer tests above 4,194,304 will have to be discarded.>> Why not all of them? Does the exponent have to be congruent to something or other mod something else for the test to fail? Ahhhh - I'm even more curious now. Is there a way that you can tell "Yup, this one's good." and "Nope, ditch this one." Or is it a probabilistic thing and we have to doublecheck all of them? *groan* S.T.L. ________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm
