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
10289Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
246937617.9old
5265985516920471548.92008-08-26 19:58:30
1977382599565436006892540613600416718793263344143.82019-04-01 19:31:57
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001282 / 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
Verified (Factored)2017-09-21Oliver Kruse4A507D83800704932013
Verified (Factored)2017-10-12kkmrkkblmbrbk4A507D83800704932308413
Verified2019-04-02ANONYMOUS75EF329EC6BB28F33163353
Verified2019-04-03oodaira75EF329EC6BB28F33260153
History
DateUserTypeResult
2022-10-22-Anonymous-NF-PM1
B1=100000000000, B2=121570702234581600
2021-08-01ViliamFNF-PM1
B1=250000000, B2=40250000000
2019-04-03oodairaC-PRP
M10289/246937/526598551692047/19773825995654360068925406136004167187932633 : 75EF329EC6BB28F3
PRP: Verified
PRP without proof (small exponent)
2019-04-02ANONYMOUSC-PRP
M10289/246937/526598551692047/19773825995654360068925406136004167187932633 : 75EF329EC6BB28F3
PRP: Verified
PRP without proof (small exponent)
2019-04-01James HintzF-ECM
Factor: 19773825995654360068925406136004167187932633 / (ECM curve 2449, B1=3000000, B2=300000000)
2017-10-12kkmrkkblmbrbkC-PRP
M10289/246937/526598551692047 : 4A507D8380070493
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10289/246937/526598551692047 : 4A507D8380070493
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10289/246937/526598551692047 : 4A507D8380070493
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-08-26-Anonymous-F-PM1
Factor: 526598551692047