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
538158583Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
38409270105007371669532271.72020-01-17 17:53:15
History
DateUserTypeResult
2025-04-07James HeinrichF
Factor: 3840927010500737166953 / TF: 71-72
2020-01-17Smok_bmv F
Factor: 3840927010500737166953 / TF: 71-72*
2019-08-31sasakiNF
no factor from 2^70 to 2^71
2016-07-28ramgeisNF
no factor from 2^69 to 2^70
2016-07-05tinnderboxNF
no factor from 2^68 to 2^69
2016-03-25tinnderboxNF
no factor from 2^67 to 2^68
2015-11-11Alexander DubrovinNF
no factor from 2^66 to 2^67
2014-11-07sasakiNF
no factor from 2^65 to 2^66