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
190755211Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2140468397289717213912167.52015-08-29 05:55:40
History
DateUserTypeResult
2015-08-29demfloroF
Factor: 214046839728971721391 / TF: 66-68
2013-06-06Chih-Wei HuangNF
no factor from 2^65 to 2^66
2011-04-14RichardNF
no factor from 2^64 to 2^65
2010-08-07Torchwood InstituteNF
no factor from 2^63 to 2^64