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
227260133Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5522120697154995720732168.92018-05-19 04:05:06
History
DateUserTypeResult
2018-05-19YxinityF
Factor: 552212069715499572073 / TF: 68-69
2016-11-16SFPeteNF
no factor from 2^67 to 2^68
2016-01-09tscNF
no factor from 2^66 to 2^67
2013-09-12Mr-PlonkNF
no factor from 2^65 to 2^66
2011-06-17Charles A. MorrisNF
no factor from 2^64 to 2^65