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
212254969Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1169779583959927074232166.72015-10-17 07:41:52
History
DateUserTypeResult
2015-10-17NickF
Factor: 116977958395992707423 / TF: 66-67
2013-08-16Mr-PlonkNF
no factor from 2^65 to 2^66
2011-05-21Mr-PlonkNF
no factor from 2^64 to 2^65