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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1882579Factored
FactorDigitsBitsDate
1024416083870982419932166.52016-07-10 00:15:50
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)John R PierceC910CC12E1086EF80
Verified (Factored)1998-12-21John IbeC910CC12E1086EF80
Verified (Factored)1999-03-15C. Cooper / S. BooneC910CC12E1086EF8184617
Verified (Factored)2016-06-02MadPooC910CC12E1086EF81448014
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-04Oliver KruseEAE646723175C3CD1013
Verified2017-11-11kkmrkkblmbrbkEAE646723175C3CD1134189813
History
DateUserTypeResult
2017-11-11kkmrkkblmbrbkC-PRP
M1882579/102441608387098241993 : EAE646723175C3CD
PRP: Verified
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1882579/102441608387098241993 : EAE646723175C3CD
PRP: Verified
PRP without proof (not generated)
2016-07-10Chang Chia-TcheF-ECM
Factor: 102441608387098241993 / (ECM curve 2, B1=50000, B2=5000000)
2016-06-02MadPooC-LL
C910CC12E1086EF8
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-07Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-09-12ramgeisNF
no factor from 2^65 to 2^66
2015-05-09snme2pm1NF
no factor from 2^64 to 2^65
2015-05-09snme2pm1NF
no factor from 2^63 to 2^64
2012-01-15markrNF-PM1
B1=275000, B2=6000000, E=12
2011-03-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-01Architects CubedNF
no factor from 2^60 to 2^61