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
7048021Factored
FactorDigitsBitsDate
2892035731720116389272168.02018-07-22 22:35:46
ECM
DigitsB1Curves
25500006 / 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)1999-05-30Greg JamesCEBB0CE9500CD10F1275100
Verified (Factored)2002-01-08Greenlee BrittenumCEBB0CE9500CD10F4516952
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2018-07-23_p95holder_F299BF1B3C2BC75C1116536453
Verified2019-03-04ATHF299BF1B3C2BC75C1507026653
History
DateUserTypeResult
2019-03-04ATHC-PRP
M7048021/289203573172011638927 : F299BF1B3C2BC75C
PRP: Verified
PRP without proof (not generated)
2018-07-23_p95holder_C-PRP
M7048021/289203573172011638927 : F299BF1B3C2BC75C
PRP: Verified
PRP without proof (not generated)
2018-07-22ramgeisF
Factor: 289203573172011638927 / TF: 67-68*
2018-04-10Squeeky_SquirrelNF-PM1
B1=410000, B2=12505000, E=12
2016-06-30kkmrkkblmbrbkNF
no factor from 2^66 to 2^67
2015-06-12VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-11-Anonymous-NF
no factor from 2^64 to 2^65
2014-02-06NesowaNF
no factor from 2^63 to 2^64
2011-12-30bcp19NF-PM1
B1=85000, B2=1530000, E=6