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
977032261Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
3106786724173031548.12008-05-27 23:24:50
19369462817163103511960.72015-12-22 19:37:22
History
DateUserTypeResult
2015-12-22ConductorF
Factor: 1936946281716310351 / TF: 1-62