Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
542081Factored
FactorDigitsBitsDate
31917729291031.6old
5232545268711238.92008-07-21 09:21:21
34533685310402058454233832581.52018-07-27 12:39:30
ECM
DigitsB1Curves
2550000280 / 280
30250000210 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-27Oliver Kruse6F869630B34EF3CF2013
Verified (Factored)2017-09-28Oliver Kruse6F869630B34EF3CF2013
Verified (Factored)2017-11-07kkmrkkblmbrbk6F869630B34EF3CF212885413
Verified2018-07-28ANONYMOUSD7B8A6A0D243027D310759353
Verified2018-07-30_p95holder_D7B8A6A0D243027D340655853
History
DateUserTypeResult
2021-08-24ViliamFNF-PM1
B1=15000000, B2=1815000000
2018-07-30_p95holder_C-PRP
M542081/3191772929/523254526871/3453368531040205845423383 : D7B8A6A0D243027D
PRP: Verified
PRP without proof (small exponent)
2018-07-28ANONYMOUSC-PRP
M542081/3191772929/523254526871/3453368531040205845423383 : D7B8A6A0D243027D
PRP: Verified
PRP without proof (small exponent)
2018-07-27TJAOIF-ECM
Factor: 3453368531040205845423383 / (ECM curve 8, B1=250000, B2=25000000)
2017-11-07kkmrkkblmbrbkC-PRP
M542081/3191772929/523254526871 : 6F869630B34EF3CF
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M542081/3191772929/523254526871 : 6F869630B34EF3CF
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M542081/3191772929/523254526871 : 6F869630B34EF3CF
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=1500000, B2=50000000, E=12
2008-07-21J FeitsmaF
Factor: 523254526871