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

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MnStatusDetails
521011913Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
8739421630334181365212169.62017-07-21 11:11:53
History
DateUserTypeResult
2025-03-10James HeinrichF
Factor: 873942163033418136521 / TF: 69-70
2017-07-21Alex_soldierF
Factor: 873942163033418136521 / TF: 69-70*
2017-06-02sasakiNF
no factor from 2^68 to 2^69
2016-08-01sasakiNF
no factor from 2^67 to 2^68
2015-07-29Maurizio FD - ItalyNF
no factor from 2^66 to 2^67
2014-09-24sasakiNF
no factor from 2^65 to 2^66
2011-12-29OS1NF
no factor from 2^64 to 2^65
2010-03-16Architects CubedNF
no factor from 2^63 to 2^64