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

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MnStatusDetails
489076811Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3985075825367261764072168.42018-06-04 05:15:59
History
DateUserTypeResult
2018-06-04YxinityF
Factor: 398507582536726176407 / TF: 68-70
2016-07-06sasakiNF
no factor from 2^67 to 2^68
2016-03-30sasakiNF
no factor from 2^66 to 2^67
2014-10-22KayJongsmaNF
no factor from 2^65 to 2^66
2011-12-18RichardNF
no factor from 2^64 to 2^65
2010-04-02Architects CubedNF
no factor from 2^63 to 2^64