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
190755511Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1555359222689698897672167.12015-08-29 06:55:39
History
DateUserTypeResult
2015-08-29demfloroF
Factor: 155535922268969889767 / TF: 66-68
2013-06-06sasaki3NF
no factor from 2^65 to 2^66
2011-04-17SodomNF
no factor from 2^64 to 2^65
2010-08-07Torchwood InstituteNF
no factor from 2^63 to 2^64