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
1748471Factored
FactorDigitsBitsDate
12588991211030.2old
97822253874805549064332273.12020-07-28 12:29:10
74260821279055934323295212582.62020-08-14 09:29:10
ECM
DigitsB1Curves
2550000280 / 280
30250000108 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-03Oliver KruseF9BC8D482BD66C771013
Verified (Factored)2017-11-03kkmrkkblmbrbkF9BC8D482BD66C7717005913
Verified (Factored)2020-07-28M MillerDA8B5DCFCC44F4CA2157104553
Verified (Factored)2020-08-02nordiDA8B5DCFCC44F4CA239234353
Verified2020-08-14M MillerDA8B5DCFCC44F4CA363229153
History
DateUserTypeResult
2020-08-14DRobinsonPECERT
PRP Certification
Proof certified good
2020-08-14M MillerC-PRP
M1748471/1258899121/9782225387480554906433/7426082127905593432329521 : DA8B5DCFCC44F4CA
PRP proof power = 7
PRP: Verified
Proof certified good
2020-08-14TJAOIF-ECM
Factor: 7426082127905593432329521 / (ECM curve 94, B1=50000, B2=5000000)
2020-08-02nordiC-PRP
M1748471/1258899121/9782225387480554906433 : DA8B5DCFCC44F4CA
PRP: Verified (Factored)
PRP without proof (not generated)
2020-07-28M MillerC-PRP
M1748471/1258899121/9782225387480554906433 : DA8B5DCFCC44F4CA
PRP: Verified (Factored)
PRP without proof (not generated)
2020-07-28_p95holder_F-ECM
Factor: 9782225387480554906433 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-03kkmrkkblmbrbkC-PRP
M1748471/1258899121 : F9BC8D482BD66C77
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1748471/1258899121 : F9BC8D482BD66C77
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12