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
328998619Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4940427487523101316412168.72016-12-13 11:44:50
History
DateUserTypeResult
2025-03-08James HeinrichF
Factor: 494042748752310131641 / TF: 68-70
2016-12-13Alex_soldierF
Factor: 494042748752310131641 / TF: 68-69*
2016-05-23monstNF
no factor from 2^66 to 2^68
2014-02-09sasakiNF
no factor from 2^65 to 2^66
2011-11-16krackerNF
no factor from 2^64 to 2^65