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Old 2004-04-25, 14:37   #5
geoff's Avatar
Mar 2003
New Zealand

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Originally Posted by dave_0273
1. Each exponent would first have to be trial-factored up to 2^70. On my computer (2.4Ghz P4), this would take at least 2 days (very rough estimate) as only 2 exponents are at 70 bit, the remaining 12850 exponents in the 56.5 to 57M range are still only at 63 bit.

2. The p-1 test would take at least a day, probably close to 2 days.
Since you are doing this manually anyway, it might be better to change the order of the work. Maybe TF to 2^68, then stage one P-1, then TF to 2^69, then stage 2 P-1, then TF to 2^70 for example.
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