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
204880237Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
5557197917212070753212168.92017-10-02 01:58:33
11141843602072970293672269.92025-03-24 01:35:10
History
DateUserTypeResult
2025-03-24James HeinrichF
Factors: 555719791721207075321,1114184360207297029367 / TF: 68-70
2017-10-02NickF
Factor: 555719791721207075321 / TF: 68-69
2016-08-26rubikvn2100NF
no factor from 2^67 to 2^68
2015-10-02vwflat4NF
no factor from 2^66 to 2^67
2013-07-26gucsNF
no factor from 2^65 to 2^66
2011-05-07Charles A. MorrisNF
no factor from 2^64 to 2^65