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Old 2011-09-20, 22:37   #12
Mini-Geek
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"Tim Sorbera"
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Quote:
Originally Posted by firejuggler View Post
and since k==2 mod 3 there won't be twin prime
There could be with -3/-1 or +3/+1, just not with -1/+1.
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Old 2011-09-23, 01:10   #13
firejuggler
 
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n checked upto 200k, still no new prime

FFT @20k, each test take 70 second, time to sieve a bit further.

Last fiddled with by firejuggler on 2011-09-23 at 01:13
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