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
189726877Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5550475940922353089932168.92017-08-05 22:22:40
History
DateUserTypeResult
2025-03-15James HeinrichF
Factor: 555047594092235308993 / TF: 68-70
2017-08-05NickF
Factor: 555047594092235308993 / TF: 68-69
2016-08-02vwflat4NF
no factor from 2^67 to 2^68
2015-09-28RichardNF
no factor from 2^66 to 2^67
2013-06-03sasaki3NF
no factor from 2^65 to 2^66
2011-04-10RichardNF
no factor from 2^64 to 2^65
2010-08-02Mr-PlonkNF
no factor from 2^63 to 2^64