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
802225871Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19685384834707936302732270.72020-02-17 21:02:43
History
DateUserTypeResult
2020-02-17ConductorF
Factor: 1968538483470793630273 / TF: 70-71
2016-08-22ramgeisNF
no factor from 2^68 to 2^70
2015-05-04sasakiNF
no factor from 2^67 to 2^68
2014-11-28sasakiNF
no factor from 2^66 to 2^67
2012-02-07Alben WeeksNF
no factor from 2^65 to 2^66
2012-02-07Alben WeeksNF
no factor from 2^64 to 2^65
2010-03-29Architects CubedNF
no factor from 2^63 to 2^64