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VBCurtis · 2019-11-30, 21:32

Lots of sigmas, usually. It's possible for a large-enough factor and 32-bit limit on sigma through GMP-ECM that just one of the ~4 billion sigmas would yield the factor for a particular B1/B2 choice, but that's a rather contrived case.

2019-11-30, 21:32	#5
VBCurtis "Curtis" Feb 2005 Riverside, CA 3×1,579 Posts	Lots of sigmas, usually. It's possible for a large-enough factor and 32-bit limit on sigma through GMP-ECM that just one of the ~4 billion sigmas would yield the factor for a particular B1/B2 choice, but that's a rather contrived case.