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
171902201Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
43168404138411988509772271.92016-11-12 02:11:33
History
DateUserTypeResult
2025-05-05Naegi MakotoF
Factor: 4316840413841198850977 / TF: 70-72
2016-11-12Sergey NosovF
Factor: 4316840413841198850977 / TF: 70-72*
2016-10-26La GüiraNF
no factor from 2^69 to 2^70
2016-10-10Adam BuranNF
no factor from 2^68 to 2^69
2016-04-28XZTNF
no factor from 2^67 to 2^68
2015-06-20tscNF
no factor from 2^66 to 2^67
2013-04-04csabaNF
no factor from 2^65 to 2^66
2011-02-26sannerud.comNF
no factor from 2^64 to 2^65
2010-07-12Charles A. MorrisNF
no factor from 2^63 to 2^64