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
686944871Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3188225981016595020892168.12018-07-01 15:55:47
History
DateUserTypeResult
2018-07-01ConductorF
Factor: 318822598101659502089 / TF: 68-69
2016-12-01NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-11sasakiNF
no factor from 2^66 to 2^67
2014-02-11america64NF
no factor from 2^65 to 2^66