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
678856697Factored
FactorDigitsBitsDate
4213801913046528422572168.52018-05-25 21:02:24
History
DateUserTypeResult
2018-05-25ConductorF
Factor: 421380191304652842257 / TF: 68-69
2016-10-23ANONYMOUSNF
no factor from 2^67 to 2^68
2014-07-28sasakiNF
no factor from 2^66 to 2^67
2014-01-11sasakiNF
no factor from 2^65 to 2^66
2012-01-28ALSNF
no factor from 2^64 to 2^65