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Old 2020-10-23, 12:00   #26
LaurV
Romulan Interpreter
 
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Jun 2011
Thailand

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Quote:
Originally Posted by Dr Sardonicus View Post
So if q = 2*k*p + 1 divides 2p - 1, and k < 2*p + 2, then q is prime.
Respective k<6*p+1 when p=1 (mod 4)
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