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
490253299Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
397861866968808497663272375.12025-09-15 07:44:38
History
DateUserTypeResult
2025-09-15SRBaseF
Factor: 39786186696880849766327 / TF: 75-76
2023-12-30SRBaseNF
no factor from 2^74 to 2^75
2022-07-02SRBaseNF
no factor from 2^73 to 2^74
2021-03-07SRBaseNF
no factor from 2^72 to 2^73
2020-08-22SRBaseNF
no factor from 2^71 to 2^72
2020-05-29mikrNF
no factor from 2^70 to 2^71
2018-05-16sasakiNF
no factor from 2^69 to 2^70
2018-03-01sasakiNF
no factor from 2^68 to 2^69
2014-06-09The MawnNF
no factor from 2^66 to 2^68
2011-10-19delta_tNF
no factor from 2^64 to 2^66
2010-04-03Architects CubedNF
no factor from 2^63 to 2^64