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
78380221Factored
FactorDigitsBitsDate
26783399013361471471243238599894618336117.72015-06-25 03:52:33
P-1 factors
DateFactorB1B2
2015-06-252678339901336147147124323859989461837250000
History
DateUserTypeResult
2015-06-25NesowaF-PM1
Factor: 267833990133614714712432385998946183 / (P-1, B1=725000)
2015-01-03Jerry HallettNF
no factor from 2^73 to 2^74
2015-01-03Jerry HallettNF
no factor from 2^72 to 2^73
2014-10-01NickOfTimeNF
no factor from 2^71 to 2^72
2013-01-09jack731NF
no factor from 2^70 to 2^71
2011-01-21Charles A. MorrisNF
no factor from 2^69 to 2^70
2011-01-18Hrudey4098NF
no factor from 2^68 to 2^69
2011-01-12Hrudey4098NF
no factor from 2^67 to 2^68
2011-01-07-Anonymous-NF
no factor from 2^66 to 2^67
2011-01-02-Anonymous-NF
no factor from 2^65 to 2^66
2010-12-27GrunwalderGIMPNF
no factor from 2^64 to 2^65
2008-07-10-Anonymous-NF
no factor to 2^64