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Originally Posted by JonathanM
What is the fastest software for checking if a Mersenne number is prime? (has to be free/non-binding, preferably for Windows 64 bit)
Also, approximately how long does checking a 1 billion digit Mersenne prime take?
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Originally Posted by firejuggler
llravx and aproximately 1 year for current harware.
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Basically nothing handles LL testing of numbers that large. And it would take too long.
From the
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There isn't hope of really finding such a prime with today's technology and algorithms. A Lucas-Lehmer primality test is estimated to require 852 years.
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