Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
800877481Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
39405195083639111954412271.72020-01-06 20:29:23
History
DateUserTypeResult
2020-01-06ConductorF
Factor: 3940519508363911195441 / TF: 71-72
2015-07-19Bruno VictalNF
no factor from 2^70 to 2^71
2015-07-19Bruno VictalNF
no factor from 2^69 to 2^70
2015-07-19Bruno VictalNF
no factor from 2^68 to 2^69
2015-05-05sasakiNF
no factor from 2^67 to 2^68
2014-11-21sasakiNF
no factor from 2^66 to 2^67
2013-10-13sasakiNF
no factor from 2^65 to 2^66
2010-09-30Architects CubedNF
no factor from 2^64 to 2^65
2010-04-06Architects CubedNF
no factor from 2^63 to 2^64