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
1802513Factored
FactorDigitsBitsDate
34426231402589224856738778472891.52013-07-10 03:01:30
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 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)David Groves29352D9E0B5AA54F0
Verified (Factored)1998-12-21Jonathan O'Keeffe29352D9E0B5AA54F1140603
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-03Oliver Kruse623FDE3B600118571013
Verified2017-11-05kkmrkkblmbrbk623FDE3B600118571104533313
History
DateUserTypeResult
2017-11-05kkmrkkblmbrbkC-PRP
M1802513/3442623140258922485673877847 : 623FDE3B60011857
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1802513/3442623140258922485673877847 : 623FDE3B60011857
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2013-07-10Chang Chia-TcheF-ECM
Factor: 3442623140258922485673877847
2011-02-07Carsten KossendeyNF-PM1
B1=100000, B2=1650000, E=6
2010-12-13GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-11Architects CubedNF
no factor from 2^60 to 2^61