Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
7179827Factored
FactorDigitsBitsDate
269404181219881903824472374.52017-10-28 17:29:29
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)1999-09-14Bradford Brown7E4DA4B72626F4F65691865
Verified (Factored)2001-12-08patrik martinson7E4DA4B72626F4F62276558
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-02-17Daniil Tsarkov41A8D9210EE440501690562653
Verified2019-04-01kkmrkkblmbrbk41A8D9210EE44050142203553
History
DateUserTypeResult
2019-04-01kkmrkkblmbrbkC-PRP
M7179827/26940418121988190382447 : 41A8D9210EE44050
PRP: Verified
PRP without proof (not generated)
2018-02-17Daniil TsarkovC-PRP
M7179827/26940418121988190382447 : 41A8D9210EE44050
PRP: Verified
PRP without proof (not generated)
2017-10-28arnaudF-ECM
Factor: 26940418121988190382447 / (ECM curve 1, B1=50000, B2=5000000)
2016-10-26Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-21VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-05lycornNF
no factor from 2^64 to 2^65
2014-02-02NesowaNF
no factor from 2^63 to 2^64
2011-12-24James HeinrichNF-PM1
B1=140000, B2=2940000, E=6