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

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MnStatusDetails
678027661Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4402317287539648174072168.62018-05-21 05:10:18
History
DateUserTypeResult
2018-05-21ConductorF
Factor: 440231728753964817407 / TF: 68-69
2016-11-24ANONYMOUSNF
no factor from 2^67 to 2^68
2014-08-03sasakiNF
no factor from 2^66 to 2^67
2014-01-10sasakiNF
no factor from 2^65 to 2^66
2012-01-27ALSNF
no factor from 2^64 to 2^65