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
678006947Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3938123024166247922712168.42017-09-14 18:53:48
History
DateUserTypeResult
2025-03-06James HeinrichF
Factor: 393812302416624792271 / TF: 68-70
2017-09-14Alex_soldierF
Factor: 393812302416624792271 / TF: 68-69*
2016-09-27ANONYMOUSNF
no factor from 2^67 to 2^68
2014-08-03sasakiNF
no factor from 2^66 to 2^67
2014-01-10sasakiNF
no factor from 2^65 to 2^66
2012-01-27mmNF
no factor from 2^64 to 2^65