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
802008673Factored
FactorDigitsBitsDate
21206717289459002122312270.82020-02-11 20:50:08
History
DateUserTypeResult
2020-02-11ConductorF
Factor: 2120671728945900212231 / TF: 70-71
2016-08-17ramgeisNF
no factor from 2^68 to 2^70
2015-09-11sasakiNF
no factor from 2^67 to 2^68
2014-11-23sasakiNF
no factor from 2^66 to 2^67
2012-02-08bamNF
no factor from 2^65 to 2^66
2012-02-08bamNF
no factor from 2^64 to 2^65
2010-07-02Architects CubedNF
no factor from 2^63 to 2^64