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
678583229Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4074890775818666163612168.52018-05-24 05:12:37
History
DateUserTypeResult
2018-05-24ConductorF
Factor: 407489077581866616361 / TF: 68-69
2016-11-25ANONYMOUSNF
no factor from 2^67 to 2^68
2014-07-22sasakiNF
no factor from 2^66 to 2^67
2014-01-14sasakiNF
no factor from 2^65 to 2^66
2012-01-28carlos56NF
no factor from 2^64 to 2^65