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
445619Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
891239619.8old
717446591929.42008-07-21 09:19:28
344516961291135.02008-07-21 09:19:28
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000192 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-24Oliver Kruse87E5CA743B9F9E8C3013
Verified2017-09-24Oliver Kruse87E5CA743B9F9E8C3013
Verified2017-11-09kkmrkkblmbrbk87E5CA743B9F9E8C310993813
Verified2020-04-18Oliver Kruse54B43EC8405031D439155053
Verified (Factored)2022-05-12Jorge Coveiro54B43EC8405031D4122681253
Verified (Factored)2022-05-12Jorge Coveiro54B43EC8405031D4122681253
Verified2024-07-25kkmrkkblmbrbk54B43EC8405031D4326680253
History
DateUserTypeResult
2024-07-25mattashiiCERT
PRP Certification
Proof certified good
2024-07-25kkmrkkblmbrbkC-PRP
M445619/34451696129/717446591/891239 : 54B43EC8405031D4
PRP proof power = 6
PRP: Verified
Proof certified good
2022-05-12Jorge CoveiroC-PRP
M445619/891239 : 54B43EC8405031D4
PRP proof power = 6
PRP: Verified (Factored)
PRP proof never uploaded
2020-04-18Oliver KruseC-PRP
M445619/891239/717446591/34451696129 : 54B43EC8405031D4
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M445619/891239/717446591/34451696129 : 87E5CA743B9F9E8C
PRP: Verified
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M445619/891239/34451696129/717446591 : 87E5CA743B9F9E8C
PRP: Verified
PRP without proof (not generated)
2017-09-24Oliver KruseC-PRP
M445619/891239/34451696129/717446591 : 87E5CA743B9F9E8C
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=3000000, B2=100000000, E=12
2008-07-21J FeitsmaF
Factor: 717446591
2008-07-21J FeitsmaF
Factor: 34451696129