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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
920651Factored
FactorDigitsBitsDate
822923168172551384624634012686.12017-11-13 05:46:18
ECM
DigitsB1Curves
2550000280 / 280
30250000129 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David SlowinskiC4F0
Verified (Factored)Chris HaleyE981BE51E0F04C4F0
Verified (Factored)2002-01-02Marc Getty / Phil FizurE981BE51E0F04C4F710682
Verified (Factored)2015-04-11MadPooE981BE51E0F04C4F906024
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-13kkmrkkblmbrbkD674CF1380A15980149483953
Verified2017-11-14Oliver KruseD674CF1380A15980138936053
History
DateUserTypeResult
2017-11-14Oliver KruseC-PRP
M920651/82292316817255138462463401 : D674CF1380A15980
PRP: Verified
PRP without proof (small exponent)
2017-11-13kkmrkkblmbrbkC-PRP
M920651/82292316817255138462463401 : D674CF1380A15980
PRP: Verified
PRP without proof (small exponent)
2017-11-13Smok_bmv F-ECM
Factor: 82292316817255138462463401 / (ECM curve 73, B1=250000, B2=25000000)
2017-10-11Smok_bmv NF
no factor from 2^67 to 2^68
2017-10-11Smok_bmv NF
no factor from 2^66 to 2^67
2017-10-10Smok_bmv NF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-01-06lycornNF
no factor from 2^64 to 2^65
2015-09-20Gordon SpenceNF
no factor from 2^63 to 2^64
2015-09-20Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
E981BE51E0F04C4F
2014-08-28lycornNF
no factor from 2^61 to 2^62
2013-12-19alpertronNF-PM1
B1=10000000, B2=500000000, E=12
2013-10-16David CampeauNF-PM1
B1=970000, B2=25220000, E=12
2011-12-27JossNF-PM1
B1=739629
2011-09-18JossNF-PM1
B1=369814
2011-07-13JossNF-PM1
B1=221888
2011-06-04JossNF-PM1
B1=200000
2010-05-20Architects CubedNF
no factor from 2^60 to 2^61