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
208529333Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2004176373405457328472167.42015-10-11 04:55:06
History
DateUserTypeResult
2015-10-11demfloroF
Factor: 200417637340545732847 / TF: 66-68
2013-08-07KYOJI_KAMEINF
no factor from 2^65 to 2^66
2011-05-13sasaki3NF
no factor from 2^64 to 2^65