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
492661999Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6656284872473739598872169.22016-09-07 08:25:25
History
DateUserTypeResult
2016-09-07baseyF
Factor: 665628487247373959887 / TF: 68-70
2016-06-24sasakiNF
no factor from 2^67 to 2^68
2016-04-12monstNF
no factor from 2^66 to 2^67
2014-10-25tscNF
no factor from 2^65 to 2^66
2011-12-18GIMP PhilippinesNF
no factor from 2^64 to 2^65
2010-04-04Architects CubedNF
no factor from 2^63 to 2^64