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
251641421Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5069665052425017100572168.82018-06-03 15:02:58
History
DateUserTypeResult
2025-03-14James HeinrichF
Factor: 506966505242501710057 / TF: 68-70
2018-06-03Stanislav_KhokhrinF
Factor: 506966505242501710057 / TF: 68-69
2014-11-13caddrNF
no factor from 2^67 to 2^68
2014-10-19caddrNF
no factor from 2^66 to 2^67
2013-11-05OS1NF
no factor from 2^65 to 2^66
2011-07-27sasaki3NF
no factor from 2^64 to 2^65
2010-03-02sasaki3NF
no factor from 2^63 to 2^64
2010-03-02sasaki3NF
no factor from 2^62 to 2^63