2010-05-22, 01:17 | #1 |
Dec 2008
Boycotting the Soapbox
720_{10} Posts |
100M-digit n/k pairs
If you had a program that could complete a primality-test for a 100M-digit candidate of the form k*2^n+/-1 in ~6 months on a 3.2Ghz quad-core machine, which k and n would you choose?
EDIT: There is a bonus if k has a 2^24th root (mod 2^64-2^32+1) Last fiddled with by __HRB__ on 2010-05-22 at 01:24 |
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