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Old 2011-04-20, 19:59   #20
R.D. Silverman
 
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Nov 2003

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Quote:
Originally Posted by zerothbase View Post
I believe the original intent of the thread was to find fast ways to prove primality up to a given limit.

It takes <3 minutes for my code to chew through the 2-SPRP list, and I've been told:



So there has been an improvement from 15 minutes for BPSW to <3 minutes for my 4-MR tests (assuming the 15 minutes was done on modern HW).

The question wasn't "is there a way to prove 64-bit primality?", it was "how fast can we do it?". Offering BPSW is equally valid to offering factoring up to the square root - yes it works, but it doesn't tell me how fast it is.
It takes as long as TWO Miller-Rabin tests. --> a few milliseconds at worst for
64 bits.
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