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

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Exponent Range:










MnStatusDetails
1494019Factored
FactorDigitsBitsDate
85535527151448771655432272.92016-03-28 09:36:55
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Mike Warot2423F93AC1A376F80
Verified (Factored)1998-12-13Roger Smith2423F93AC1A376F81426061
Verified (Factored)2015-07-19MadPoo2423F93AC1A376F81172537
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-01Oliver KruseAE9237E199304F161013
Verified2017-10-29kkmrkkblmbrbkAE9237E199304F16179183213
History
DateUserTypeResult
2017-10-29kkmrkkblmbrbkC-PRP
M1494019/8553552715144877165543 : AE9237E199304F16
PRP: Verified
PRP without proof (not generated)
2017-10-01Oliver KruseC-PRP
M1494019/8553552715144877165543 : AE9237E199304F16
PRP: Verified
PRP without proof (not generated)
2016-03-28bamF-ECM
Factor: 8553552715144877165543 / (ECM curve 2, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-09-25ramgeisNF
no factor from 2^65 to 2^66
2015-07-19MadPooC-LL
2423F93AC1A376F8
2015-04-24alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2015-04-07snme2pm1NF
no factor from 2^64 to 2^65
2015-04-07snme2pm1NF
no factor from 2^63 to 2^64
2011-12-07markrNF-PM1
B1=275000, B2=6000000, E=12
2011-05-28GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-05-07Architects CubedNF
no factor from 2^60 to 2^61