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
14479Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
278857282336731444.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001265 / 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 KruseBCE8590CEC1E4E391013
Verified2017-10-12kkmrkkblmbrbkBCE8590CEC1E4E3911166413
Verified2020-04-17Oliver KruseC468F4E388C2D0A41845953
Verified2024-07-01kkmrkkblmbrbkC468F4E388C2D0A41298853
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14479/27885728233673 : C468F4E388C2D0A4
PRP: Verified
PRP without proof (small exponent)
2023-11-30-Anonymous-NF-PM1
B1=100000000000, B2=122815096988293710
2023-05-25JacobZNF-PM1
B1=7500000000, B2=29520458628010350
2022-01-23Ethan O'ConnorNF-PM1
B1=10000000, B2=193024403281710
2020-04-17Oliver KruseC-PRP
M14479/27885728233673 : C468F4E388C2D0A4
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14479/27885728233673 : BCE8590CEC1E4E39
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14479/27885728233673 : BCE8590CEC1E4E39
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14479/27885728233673 : BCE8590CEC1E4E39
PRP without proof (not generated)