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
800203321Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
15626433111352782521292270.42019-11-12 16:11:59
History
DateUserTypeResult
2019-11-12ConductorF
Factor: 1562643311135278252129 / TF: 70-71
2016-08-16ramgeisNF
no factor from 2^68 to 2^70
2015-05-02sasakiNF
no factor from 2^67 to 2^68
2014-11-07sasakiNF
no factor from 2^66 to 2^67
2013-10-15america64NF
no factor from 2^65 to 2^66
2010-09-28Architects CubedNF
no factor from 2^64 to 2^65
2010-04-04Architects CubedNF
no factor from 2^63 to 2^64