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
228185281Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4472365923293909351112168.62018-04-02 12:54:29
History
DateUserTypeResult
2025-03-13James HeinrichF
Factor: 447236592329390935111 / TF: 68-70
2018-04-02NickF
Factor: 447236592329390935111 / TF: 68-69
2017-01-12Kendall PerryNF
no factor from 2^67 to 2^68
2015-11-10mikeblasNF
no factor from 2^66 to 2^67
2013-09-15Lukin DmitryNF
no factor from 2^65 to 2^66
2011-06-18Mr-PlonkNF
no factor from 2^64 to 2^65