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
491108173Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
438996235666105440294712375.22025-09-15 07:52:45
History
DateUserTypeResult
2025-09-15SRBaseF
Factor: 43899623566610544029471 / TF: 75-76
2023-12-29SRBaseNF
no factor from 2^74 to 2^75
2022-07-02SRBaseNF
no factor from 2^73 to 2^74
2021-03-09SRBaseNF
no factor from 2^72 to 2^73
2020-08-23SRBaseNF
no factor from 2^71 to 2^72
2020-05-31SRBaseNF
no factor from 2^70 to 2^71
2018-05-22sasakiNF
no factor from 2^69 to 2^70
2018-03-01sasakiNF
no factor from 2^68 to 2^69
2014-06-17The MawnNF
no factor from 2^66 to 2^68
2012-08-25c10ck3rNF
no factor from 2^65 to 2^66
2011-12-18LingUaanNF
no factor from 2^64 to 2^65
2010-04-03Architects CubedNF
no factor from 2^63 to 2^64