Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
115772773Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
419775944757121991241592375.22020-10-05 18:23:45
History
DateUserTypeResult
2020-10-05RobertKazanF
Factor: 41977594475712199124159 / TF: 75-76*
2020-10-05RobertKazanNF
no factor from 2^74 to 2^75
2020-10-05RobertKazanNF
no factor from 2^73 to 2^74
2020-04-26SRBaseNF
no factor from 2^72 to 2^73
2015-08-20David HruskaNF
no factor from 2^71 to 2^72
2015-07-17David HruskaNF
no factor from 2^70 to 2^71
2015-06-06David HruskaNF
no factor from 2^69 to 2^70
2015-03-04Judge HaleNF
no factor from 2^68 to 2^69
2015-03-02SMoffatNF
no factor from 2^67 to 2^68
2014-11-29tscNF
no factor from 2^66 to 2^67
2012-06-22sasaki3NF
no factor from 2^65 to 2^66
2010-10-06Mr-PlonkNF
no factor from 2^64 to 2^65
2010-05-08sasaki3NF
no factor from 2^63 to 2^64