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
619784021Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
7681240608342751871512169.42016-09-21 03:59:39
History
DateUserTypeResult
2016-09-21NipalF
Factor: 768124060834275187151 / TF: 69-70
2016-09-21NipalNF
no factor from 2^68 to 2^69
2016-09-21NipalNF
no factor from 2^67 to 2^68
2014-03-13sasakiNF
no factor from 2^65 to 2^67