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

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Exponent Range:










MnStatusDetails
1473049Factored
FactorDigitsBitsDate
59635834579841690962876204632892.32016-08-29 10:06:15
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)Thiemo SammernEBA2F6BF5D4C21880
Verified (Factored)1998-11-14Ken FinlaysonEBA2F6BF5D4C2188641129
Verified (Factored)2015-07-04MadPooEBA2F6BF5D4C21881065556
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-01Oliver Kruse774DF2EDD77AA1051013
Verified2017-11-05kkmrkkblmbrbk774DF2EDD77AA105178463513
History
DateUserTypeResult
2017-11-05kkmrkkblmbrbkC-PRP
M1473049/5963583457984169096287620463 : 774DF2EDD77AA105
PRP: Verified
PRP without proof (not generated)
2017-10-01Oliver KruseC-PRP
M1473049/5963583457984169096287620463 : 774DF2EDD77AA105
PRP: Verified
PRP without proof (not generated)
2016-08-29bamF-ECM
Factor: 5963583457984169096287620463 / (ECM curve 3, B1=50000, B2=5000000)
2016-08-27Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-08-25Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-09-21ramgeisNF
no factor from 2^65 to 2^66
2015-07-04MadPooC-LL
EBA2F6BF5D4C2188
2015-04-03snme2pm1NF
no factor from 2^64 to 2^65
2015-04-03snme2pm1NF
no factor from 2^63 to 2^64
2015-02-26alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2015-02-20JossNF-PM1
B1=431500
2015-02-15JossNF-PM1
B1=392273
2015-01-31JossNF-PM1
B1=356612
2015-01-28JossNF-PM1
B1=324193
2015-01-26JossNF-PM1
B1=294721
2014-11-19JossNF-PM1
B1=243572
2011-04-05GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-10-28Rob_DeeNF-PM1
B1=200000, B2=5000000, E=6
2010-10-27Rob_DeeNF-PM1
B1=200000, B2=4000000, E=6
2010-10-26Rob_DeeNF-PM1
B1=200000, B2=3000000, E=6
2010-10-25Rob_DeeNF-PM1
B1=200000, B2=2000000, E=6
2010-10-24Rob_DeeNF-PM1
B1=200000, B2=1000000, E=6
2010-10-23Rob_DeeNF-PM1
B1=200000, B2=300000
2010-10-22Rob_DeeNF-PM1
B1=100000, B2=200000
2010-05-08Architects CubedNF
no factor from 2^60 to 2^61