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
7994279Factored
FactorDigitsBitsDate
2824999698056272510872167.92018-07-24 09:47:53
ECM
DigitsB1Curves
25500003 / 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)1999-08-31Greg SkylesEDB0A64D3924AABC0
Verified (Factored)2002-07-14Marc Getty / Phil FizurEDB0A64D3924AABC1467946
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-07-26_p95holder_7DD7A8E2A6E868291301713553
Verified2019-12-24GAN7DD7A8E2A6E868291594430153
History
DateUserTypeResult
2019-12-24GANC-PRP
M7994279/282499969805627251087 : 7DD7A8E2A6E86829
PRP: Verified
PRP without proof (not generated)
2018-07-26_p95holder_C-PRP
M7994279/282499969805627251087 : 7DD7A8E2A6E86829
PRP: Verified
PRP without proof (not generated)
2018-07-24ramgeisF
Factor: 282499969805627251087 / TF: 67-68*
2016-08-21Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-09VictordeHollanderNF
no factor from 2^65 to 2^66
2014-01-03lycornNF
no factor from 2^64 to 2^65
2013-09-19NesowaNF
no factor from 2^63 to 2^64
2012-07-04NesowaNF-PM1
B1=100000, B2=1950000, E=6