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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Exponent Range:










MnStatusDetails
25309409Factored
FactorDigitsBitsDate
787265401952487185790653592686.02021-12-28 18:33:16
ECM
DigitsB1Curves
25500004 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2005-02-02Bob MarguliesA4416D5ADFF4CA9A15778628
Verified (Factored)2011-02-25S485122A4416D5ADFF4CA9A12408766
History
DateUserTypeResult
2021-12-28Anton RepkoF-PP1
Start=2/7, B1=2000000, Factor: 78726540195248718579065359
2021-10-17TheJudgerNF
no factor from 2^74 to 2^75
2021-10-01TheJudgerNF
no factor from 2^73 to 2^74
2021-08-28TheJudgerNF
no factor from 2^72 to 2^73
2021-08-28TheJudgerNF
no factor from 2^71 to 2^72
2021-06-10mikrNF
no factor from 2^70 to 2^71
2017-05-28ramgeisNF
no factor from 2^69 to 2^70
2017-05-28ramgeisNF
no factor from 2^68 to 2^69
2016-01-04VictordeHollanderNF
no factor from 2^67 to 2^68
2011-02-25S485122C-LL
A4416D5ADFF4CA9A