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
658046237Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5200489537739341468972168.82016-10-26 15:00:51
History
DateUserTypeResult
2016-10-26NipalF
Factor: 520048953773934146897 / TF: 67-70
2014-06-30sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66
2010-11-07Architects CubedNF
no factor from 2^64 to 2^65
2010-07-23Architects CubedNF
no factor from 2^63 to 2^64