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
14897Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
367910423630171445.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001271 / 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 Kruse09B9BB885699E2E51013
Verified2017-10-12kkmrkkblmbrbk09B9BB885699E2E511248213
Verified2020-04-17Oliver KruseE7D891EAA5A23B5A180553
Verified2024-07-01kkmrkkblmbrbkE7D891EAA5A23B5A11190253
P-1 factors
DateFactorB1B2
2022-03-17367910423630171000000001000000000
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14897/36791042363017 : E7D891EAA5A23B5A
PRP: Verified
PRP without proof (small exponent)
2024-03-07-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-27JacobZNF-PM1
B1=7300000000, B2=30020805351537000
2023-05-03RubiksmathNF-PM1
B1=1000000000, B2=138858338138520
2022-03-17onlinegameF-PM1
Factor: 36791042363017 / (P-1, B1=100000000, B2=1000000000, E=12)
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M14897/36791042363017 : E7D891EAA5A23B5A
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14897/36791042363017 : 09B9BB885699E2E5
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14897/36791042363017 : 09B9BB885699E2E5
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14897/36791042363017 : 09B9BB885699E2E5
PRP without proof (not generated)