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

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MnStatusDetails
982004357Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
39313854004243197651532271.72016-12-19 15:58:23
History
DateUserTypeResult
2016-12-19ConductorF
Factor: 3931385400424319765153 / TF: 71-72
2015-02-03ramgeisNF
no factor from 2^67 to 2^71
2014-11-10E.LechnerNF
no factor from 2^66 to 2^67
2012-03-02lindedNF
no factor from 2^65 to 2^66
2010-11-13lindedNF
no factor from 2^64 to 2^65