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Old 2017-11-22, 11:27   #3
alpertron's Avatar
Aug 2002
Buenos Aires, Argentina

2·659 Posts

I have ran P-1 algorithm with the bounds cited above on exponents less than 2.3M with known factors and the computer found several hundred new factors.

Also the amount of ECM for exponents above that number is very low, especially for Mersenne numbers with known factors.

Last fiddled with by alpertron on 2017-11-22 at 12:20
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