Quote:
Originally posted by alpertron
When I added a filter to exclude composites no factors were generated by the program (at least for A less than 1000000).

Can you paste the source here? I know this probably find us any new factors, but still i'm interested.
Code:
30 if J@3=0 or J@5=0 or J@7=0 or J@11=0 then 220
Is this just a check if the factor can be divided by small primes?
Code:
60 if modpow(13,J1,J)<>1 and modpow(17,J1,J)<>1 then 220
What about this?