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
14947Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
34440081215683625235629992581.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001254 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseA0E29D9F7FD94BDD1013
Verified2017-10-12kkmrkkblmbrbkA0E29D9F7FD94BDD11112513
Verified2020-04-17Oliver Kruse826B051A459646DC1293553
Verified2024-07-01kkmrkkblmbrbk826B051A459646DC11448853
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14947/3444008121568362523562999 : 826B051A459646DC
PRP: Verified
PRP without proof (small exponent)
2024-05-21Anton RepkoNF-PM1
B1=1000000000000, B2=1401075893663576130
2022-02-18Ethan O'ConnorNF-PM1
B1=10000000000, B2=91404070696018080
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M14947/3444008121568362523562999 : 826B051A459646DC
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14947/3444008121568362523562999 : A0E29D9F7FD94BDD
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14947/3444008121568362523562999 : A0E29D9F7FD94BDD
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14947/3444008121568362523562999 : A0E29D9F7FD94BDD
PRP without proof (not generated)