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
901831387Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
3917355173146172996472168.42016-10-18 13:05:14
125522337701819233314072373.42025-04-23 16:35:12
History
DateUserTypeResult
2025-04-23yuriy5-1F
Factor: 12552233770181923331407 / TF: 69-74
2016-10-18ConductorF
Factor: 391735517314617299647 / TF: 68-69
2016-06-12monstNF
no factor from 2^67 to 2^68
2015-01-29Gordon SpenceNF
no factor from 2^66 to 2^67
2012-07-02c10ck3rNF
no factor from 2^65 to 2^66
2011-11-04lindedNF
no factor from 2^64 to 2^65
2010-06-21lindeeNF
no factor from 2^63 to 2^64