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
187811443Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1263915625945708454412166.82015-08-21 00:00:21
History
DateUserTypeResult
2015-08-21Alex_soldierF
Factor: 126391562594570845441 / TF: 66-67*
2013-05-27Ed StrakerNF
no factor from 2^65 to 2^66
2011-04-05Mr-PlonkNF
no factor from 2^64 to 2^65
2010-08-03RichardNF
no factor from 2^63 to 2^64