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
204861619Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
973959692814664006792066.42015-10-03 10:35:12
History
DateUserTypeResult
2015-10-03NickF
Factor: 97395969281466400679 / TF: 66-67
2013-07-29RichardNF
no factor from 2^65 to 2^66
2011-05-07Pool PartyNF
no factor from 2^64 to 2^65