I have observed the following in LLR version 3.8.5:
When testing 10^500+961, LLR tells me:
Code:
Starting probable prime test of 10^500+961
10^500+961 is not prime, although base 3-Fermat PSP!! Time : 32.815 ms.
but 10^500+961 has been certified prime using Primo!
Nugget