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
358079Factored
FactorDigitsBitsDate
5447177903403776706762608753033098.82019-03-24 04:06:06
ECM
DigitsB1Curves
2550000280 / 280
30250000348 / 640
Estimated T-Level: 27.7 ⓘ
TF below 2^87 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski33770
Verified (Factored)Unknown156B3770
Verified (Factored)Sergio FilippiniC3C9193F5156B3770
Verified (Factored)Brian J. BeesleyC3C9193F5156B3770
Verified (Factored)Eivind TrielC3C9193F5156B377357180
Verified (Factored)2016-06-01MadPooC3C9193F5156B37773845
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-03-25ANONYMOUS764ABC271CE99078117338253
Verified2019-03-26Chang Chia-Tche764ABC271CE99078135355853
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-03-26Chang Chia-TcheC-PRP
M358079/544717790340377670676260875303 : 764ABC271CE99078
PRP: Verified
PRP without proof (small exponent)
2019-03-25ANONYMOUSC-PRP
M358079/544717790340377670676260875303 : 764ABC271CE99078
PRP: Verified
PRP without proof (small exponent)
2019-03-24alexF-ECM
Factor: 544717790340377670676260875303 / (ECM curve 98, B1=250000, B2=25000000, Sigma=4244893669070223)
2018-02-22BloodERazorNF
no factor from 2^64 to 2^65
2018-02-22Gordon SpenceNF
no factor from 2^64 to 2^65
2016-11-18mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2016-06-01MadPooC-LL
C3C9193F5156B377
2015-12-22Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-22Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-26NRNF
no factor from 2^61 to 2^62
2013-05-17lycornNF
no factor from 2^60 to 2^61
2012-02-27alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-08-10JossNF-PM1
B1=1258174
2009-01-22Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59