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

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MnStatusDetails
556939949Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5188419440490675260712168.82018-05-26 04:17:32
History
DateUserTypeResult
2018-05-26YxinityF
Factor: 518841944049067526071 / TF: 68-70
2016-11-15sasakiNF
no factor from 2^67 to 2^68
2015-12-04sasakiNF
no factor from 2^66 to 2^67
2014-09-15sasakiNF
no factor from 2^65 to 2^66
2011-09-26Architects CubedNF
no factor from 2^64 to 2^65