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
677999557Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2413978471393430500632167.72016-12-12 15:49:41
History
DateUserTypeResult
2016-12-12fraltF
Factor: 241397847139343050063 / TF: 67-68
2014-08-03sasakiNF
no factor from 2^66 to 2^67
2014-01-11sasakiNF
no factor from 2^65 to 2^66