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
321452933Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2213176345068450692172167.62016-12-28 12:47:56
History
DateUserTypeResult
2016-12-28NickF
Factor: 221317634506845069217 / TF: 67-68
2016-02-29W Klaus von MullerNF
no factor from 2^66 to 2^67
2014-01-30tscNF
no factor from 2^65 to 2^66
2011-11-06CorbyguyNF
no factor from 2^64 to 2^65