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
658672249Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5203420631175126264892168.82016-11-02 16:51:39
History
DateUserTypeResult
2016-11-02NipalF
Factor: 520342063117512626489 / TF: 67-70
2014-04-26abcNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66