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
17047Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
14981026173574682194939612580.3old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001955 / 9201
Estimated T-Level: 41.1
TF below 2^131 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse8AE4E113B74170B21013
Verified2017-10-12kkmrkkblmbrbk8AE4E113B74170B211670413
Verified2020-04-17Oliver KruseBEC25554016586311844953
Verified2024-07-01kkmrkkblmbrbkBEC255540165863111379653
P-1 factors
DateFactorB1B2
2024-12-101498102617357468219493961100000000000120420153999155008
History
DateUserTypeResult
2024-12-30masserNF-PP1
Start=174/31, B1=132000000, B2=131868000000
2024-12-23masserNF-PP1
Start=6/5, B1=132000000, B2=131868000000
2024-12-10-Anonymous-F-PM1
Factor: 1498102617357468219493961 / (P-1, B1=100000000000, B2=120420153999155010)
2024-12-09masserNF-PP1
Start=2/7, B1=132000000, B2=131868000000
2024-07-01kkmrkkblmbrbkC-PRP
M17047/1498102617357468219493961 : BEC2555401658631
PRP: Verified
PRP without proof (small exponent)
2023-05-23JacobZNF-PM1
B1=6300000000, B2=17613225783603450
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M17047/1498102617357468219493961 : BEC2555401658631
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M17047/1498102617357468219493961 : 8AE4E113B74170B2
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M17047/1498102617357468219493961 : 8AE4E113B74170B2
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M17047/1498102617357468219493961 : 8AE4E113B74170B2
PRP without proof (not generated)