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
887981371Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
40970612329403805636472271.82020-03-05 22:58:24
History
DateUserTypeResult
2020-03-05Alex_soldierF
Factor: 4097061232940380563647 / TF: 71-72
2019-08-09srow7NF
no factor from 2^70 to 2^71
2016-12-14ramgeisNF
no factor from 2^68 to 2^70
2013-02-21HBendtzNF
no factor from 2^65 to 2^68
2010-10-28Architects CubedNF
no factor from 2^64 to 2^65
2010-04-18Architects CubedNF
no factor from 2^63 to 2^64