Quote:
Originally Posted by Happy5214
Did Prof. Caldwell tell you that was a requirement? There are several primes in that database with only an ECPP proof. There's an entire top 20 page of them.
I also ran a third or so of a t30 (ECM) on the cofactor of that number (which is nowhere near small for factorization, where 200 digits is huge for nonspecial forms), with no dice.

Hugo compare his numbers with Mersenne primes which are very large,
if you wanted to have fun proving a number of 1 million digits with ECPP,
have fun alone.