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
678400517Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4379025928348450145532168.62018-05-22 19:48:17
History
DateUserTypeResult
2018-05-22ConductorF
Factor: 437902592834845014553 / TF: 68-69
2016-12-13ANONYMOUSNF
no factor from 2^67 to 2^68
2014-07-18sasakiNF
no factor from 2^66 to 2^67
2014-01-11sasakiNF
no factor from 2^65 to 2^66
2012-01-27GIMP PhilippinesNF
no factor from 2^64 to 2^65