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
977784491Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
2163781462201151931857.62008-06-11 01:10:33
20152609182298106331960.82015-12-23 19:47:30
History
DateUserTypeResult
2025-05-05yuriy5-1NF
no factor from 2^68 to 2^69
2015-12-23ConductorF
Factor: 2015260918229810633 / TF: 1-62