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
815987969Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19447820532859923173932270.72019-11-24 09:05:15
History
DateUserTypeResult
2019-11-24Alex_soldierF
Factor: 1944782053285992317393 / TF: 70-71
2017-01-22ramgeisNF
no factor from 2^68 to 2^70
2015-06-27sasakiNF
no factor from 2^67 to 2^68
2014-12-26sasakiNF
no factor from 2^66 to 2^67
2012-02-28CandideNF
no factor from 2^65 to 2^66
2012-02-28CandideNF
no factor from 2^64 to 2^65
2010-07-08Architects CubedNF
no factor from 2^63 to 2^64