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
276793973Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
646193186694788826232065.82013-12-10 11:02:31
History
DateUserTypeResult
2013-12-10NickF
Factor: 64619318669478882623
2011-09-08RichardNF
no factor from 2^64 to 2^65
2010-04-03Torchwood InstituteNF
no factor from 2^63 to 2^64
2010-04-03Torchwood InstituteNF
no factor from 2^62 to 2^63