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
139038649Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
15615863311571810738092270.42016-10-25 15:00:47
History
DateUserTypeResult
2025-04-28James HeinrichF
Factor: 1561586331157181073809 / TF: 70-71
2016-10-25d3zorgF
Factor: 1561586331157181073809 / TF: 70-71
2016-10-24JMGarciaNF
no factor from 2^69 to 2^70
2016-08-18AnrodionNF
no factor from 2^68 to 2^69
2016-08-12proxy2222NF
no factor from 2^67 to 2^68
2015-02-09GrunwalderGIMPNF
no factor from 2^66 to 2^67
2012-11-23RichardNF
no factor from 2^65 to 2^66
2010-12-06Michael CNF
no factor from 2^64 to 2^65
2010-06-13Torchwood InstituteNF
no factor from 2^63 to 2^64