Does anyone have any cases for small k*2^n+1 numbers that fail to find
xGF factors in PFGW when not using the -a switch? I have one, but it
is over one million bits. I was hoping for something much smaller so
that I could try to determine the root cause of the problem. I
suspect that it is in PFGW, not gwnum, but having a smaller number to
test with would help me tremendously in determining why -a1 is required.

--Mark