Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
209479717Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
752516996006397846472066.02015-10-16 08:10:38
History
DateUserTypeResult
2015-10-16Alex_soldierF
Factor: 75251699600639784647 / TF: 66-67
2013-08-10David CampeauNF
no factor from 2^65 to 2^66
2011-05-17oodairaNF
no factor from 2^64 to 2^65