[axn]

Originally Posted by mattmill30

However, my question is whether primenet is correct in reporting that neither factor is valid for M332347303?

Originally Posted by firejuggler

hmmm both seem to be factor of M3321928619 instead.
http://factordb.com/index.php?query=48684837137044687-1
and http://factordb.com/index.php?query=797262868561-1

Already answered. They are both factors of a different Mersenne number and cannot be the factor of M332347303.

Couple of things:
1) The composite factor is 95 bits. So it should not have been found by the mfaktc run for 77-81 bit level(s).
2) It is for a completely different exponent.

Conclusion
There was internal corruption during that particular mfaktc run, where both the exponent and the bitlevel got corrupted.

EDIT:- Please redo the entire run.