Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
678658597Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3938048252471057150412168.42018-05-25 03:58:56
History
DateUserTypeResult
2018-05-25ConductorF
Factor: 393804825247105715041 / TF: 68-69
2016-12-05ANONYMOUSNF
no factor from 2^67 to 2^68
2014-07-19sasakiNF
no factor from 2^66 to 2^67
2014-01-11sasakiNF
no factor from 2^65 to 2^66