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
398138383Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
44616425010640202112792271.92020-02-05 04:32:16
History
DateUserTypeResult
2025-05-05James HeinrichF
Factor: 4461642501064020211279 / TF: 71-72
2020-02-05Smok_bmv F
Factor: 4461642501064020211279 / TF: 71-72*
2020-02-05Smok_bmv NF
no factor from 2^70 to 2^71
2017-10-14mikrNF
no factor from 2^68 to 2^70
2017-02-16rubikvn2100NF
no factor from 2^67 to 2^68
2016-04-09Alex_soldierNF
no factor from 2^66 to 2^67
2014-06-05RichardNF
no factor from 2^65 to 2^66
2010-05-09Architects CubedNF
no factor from 2^64 to 2^65