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Old 2004-10-07, 06:16   #4
robert44444uk's Avatar
Jun 2003
Oxford, UK

25·32·7 Posts
Default Sieve

Actually have not started sieving yet! Just pre factoring ( -f100) in pfgw. Populations of candidates with no factors under 1000000 are only 1-3% or so in any case.

Don't know of a quick way to sieve 200 candidates, Phil Carmody developed software to sieve 12 at a time.

But it would be easy to take a few candidates and sieve in NewPGen and run up to 200000 or so.


Robert Smith

PS: 150506*5^22667+1 popped up overnight
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