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
209819Factored
FactorDigitsBitsDate
8940160592230469831832169.62009-03-25 20:32:08
ECM
DigitsB1Curves
2550000280 / 280
30250000563 / 640
Estimated T-Level: 29.4
TF below 2^93 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Chris Haley4DC0FEC6426E07480
Verified (Factored)Peter Marksteiner4DC0FEC6426E07480
Verified (Factored)Eivind Triel4DC0FEC6426E074859829
Verified (Factored)2002-12-25Brian J. Beesley4DC0FEC6426E0748177681
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse808550ECABF116551013
Verified2017-10-12kkmrkkblmbrbk808550ECABF11655117644913
Verified2020-04-17Oliver Kruse3A82CD6D784D07FE14426453
Verified2023-08-03USAFSS3A82CD6D784D07FE112706353
History
DateUserTypeResult
2023-08-03curtiscCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M209819/894016059223046983183 : 3A82CD6D784D07FE
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^57 to 2^58
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2022-02-16Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-05-13Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-04-17Oliver KruseC-PRP
M209819/894016059223046983183 : 3A82CD6D784D07FE
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M209819/894016059223046983183 : 808550ECABF11655
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M209819/894016059223046983183 : 808550ECABF11655
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M209819/894016059223046983183 : 808550ECABF11655
PRP without proof (not generated)
2009-03-25Carsten KossendeyF-ECM
Factor: 894016059223046983183
2009-03-15axnNF-PM1
B1=5000000, B2=200000000, E=12
2009-01-26Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-31Sturle SundeNF
no factor from 2^58 to 2^59