Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3001213Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
435002674617569223945404812685.22016-07-17 05:31:23
ECM
DigitsB1Curves
2550000108 / 280
Estimated T-Level: 21.9
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Ethan Hansen530FD7F8BA5C06B00
Verified (Factored)1999-05-30Raymond Gonzalez530FD7F8BA5C06B01729865
Verified (Factored)2012-08-29kdgehman530FD7F8BA5C06B01418111
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-27Oliver Kruse8B388A0AE679658F1103578553
Verified2017-12-11kkmrkkblmbrbk8B388A0AE679658F1281124353
P-1 factors
DateFactorB1B2
2016-07-1743500267461756922394540481165000046200000
History
DateUserTypeResult
2022-07-31JossNF-PM1
B1=3001213, B2=3032780520
2022-01-09JossNF
no factor from 2^68 to 2^69
2021-12-22JossNF-PM1
B1=3001213, B2=667190370
2021-12-21JossNF-PM1
B1=3001213, B2=138761700
2021-09-18JossNF-PM1
B1=3001213, B2=30012130, E=12
2021-09-17JossNF-PM1
B1=3001213
2021-03-02JossNF
no factor from 2^67 to 2^68
2021-02-21JossNF
no factor from 2^66 to 2^67
2021-01-19JossNF
no factor from 2^65 to 2^66
2021-01-15JossNF-PM1
B1=3001213
2020-09-10JossNF-PM1
B1=350140, B2=6002426, E=6
2017-12-11kkmrkkblmbrbkC-PRP
M3001213/43500267461756922394540481 : 8B388A0AE679658F
PRP: Verified
PRP without proof (not generated)
2017-10-27Oliver KruseC-PRP
M3001213/43500267461756922394540481 : 8B388A0AE679658F
PRP: Verified
PRP without proof (not generated)
2016-07-17treborF-PM1
Factor: 43500267461756922394540481 / (P-1, B1=1650000, B2=46200000, E=12)
2015-05-30ThaNF
no factor from 2^65 to 2^66
2013-12-16David CampeauNF
no factor from 2^64 to 2^65
2013-12-10krackerNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2012-08-29kdgehmanC-LL
530FD7F8BA5C06B0
2010-08-19Sid & AndyNF
no factor from 2^61 to 2^62
2010-06-04Rob_DeeNF-PM1
B1=1000000, B2=1100000
2010-06-03Rob_DeeNF-PM1
B1=950000, B2=1050000
2010-06-02Rob_DeeNF-PM1
B1=900000, B2=1000000
2010-06-01Rob_DeeNF-PM1
B1=850000, B2=950000
2010-05-31Rob_DeeNF-PM1
B1=800000, B2=900000
2010-05-30Rob_DeeNF-PM1
B1=750000, B2=850000
2010-05-29Rob_DeeNF-PM1
B1=700000, B2=800000
2010-05-28Rob_DeeNF-PM1
B1=650000, B2=750000
2010-05-27Rob_DeeNF-PM1
B1=600000, B2=700000
2010-05-26Rob_DeeNF-PM1
B1=550000, B2=650000
2010-05-25Rob_DeeNF-PM1
B1=500000, B2=600000
2010-05-24Rob_DeeNF-PM1
B1=450000, B2=550000
2010-05-23Rob_DeeNF-PM1
B1=400000, B2=500000
2010-05-22Rob_DeeNF-PM1
B1=350000, B2=450000
2010-05-21Rob_DeeNF-PM1
B1=300000, B2=400000
2010-05-20Rob_DeeNF-PM1
B1=250000, B2=350000
2010-05-19Rob_DeeNF-PM1
B1=200000, B2=300000
2010-05-18Rob_DeeNF-PM1
B1=150000, B2=250000
2010-05-17Rob_DeeNF-PM1
B1=100000, B2=200000
2010-05-16Rob_DeeNF-PM1
B1=50000, B2=150000
2009-05-10Rob_DeeNF-PM1
B1=35000, B2=551250
2009-01-23Jayson KingNF
no factor from 2^60 to 2^61