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
278681993Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1842147171849433367692167.32016-11-08 23:04:18
History
DateUserTypeResult
2016-11-08demfloroF
Factor: 184214717184943336769 / TF: 67-68
2016-01-16sasakiNF
no factor from 2^66 to 2^67
2013-12-10tscNF
no factor from 2^65 to 2^66
2011-09-11Lukin DmitryNF
no factor from 2^64 to 2^65
2010-04-05sasaki3NF
no factor from 2^63 to 2^64
2010-04-05sasaki3NF
no factor from 2^62 to 2^63