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Old 2012-06-24, 03:47   #7
davieddy's Avatar
Dec 2006

2·3·13·83 Posts

Originally Posted by science_man_88 View Post
basically what is being pointed out here is that gimps does not do TF by LL.
It's not GIMPS, it is what an LL test tells you:
Either the number is prime or it's composite, but
if composite gives no indication as to what the factors are.

(Although one might conjecture that the actual non-zero residue
could potentially help in finding the factors).

It is worth checking for factors below 2^73.
GIMPS typically searches up to 2^71,
because of an administrative cock-up.
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