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
228246313Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4035757749046384280392168.52018-04-02 22:56:32
History
DateUserTypeResult
2025-03-13James HeinrichF
Factor: 403575774904638428039 / TF: 68-70
2018-04-02NickF
Factor: 403575774904638428039 / TF: 68-69
2017-01-10Jan KuipersNF
no factor from 2^67 to 2^68
2015-11-11vwflat4NF
no factor from 2^66 to 2^67
2013-09-19GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-06-19sasaki3NF
no factor from 2^64 to 2^65