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:





MnDetails
10289
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
246937617.9old
5265985516920471548.92008-08-26 19:58:30
1977382599565436006892540613600416718793263344143.82019-04-01 19:31:57
368187554257962506246736659147437864177864611146151.42025-06-04 16:16:34
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003287 / 16550
Estimated T-Level: 46.0 ⓘ
TF below 2^148 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver Kruse4A507D83800704932013
Factored
No proof (small exponent)
2017-10-12kkmrkkblmbrbk4A507D83800704932308413
Factored
No proof (small exponent)
2019-04-02ANONYMOUS75EF329EC6BB28F33163353
Factored
No proof (small exponent)
2019-04-03oodaira75EF329EC6BB28F33260153
Verified
No proof (small exponent)
2025-06-04nordi75EF329EC6BB28F34186253
History
DateUserTypeResult
2025-06-04nordiC-PRPM10289/246937/526598551692047/19773825995654360068925406136004167187932633/3681875542579625062467366591474378641778646111 : 75EF329EC6BB28F3
2025-06-04nordiF-ECMFactor: 3681875542579625062467366591474378641778646111 / ECM curve 795, B1=44000000, B2=1117403522235, Edwards Sigma=8250426244312615
2025-02-26masserNF-PP1Start=92/23, B1=640000000, B2=639360000000
2025-02-19masserNF-PP1Start=6/5, B1=640000000, B2=639360000000
2025-01-30masserNF-PP1Start=2/7, B1=640000000, B2=639360000000
2022-10-22-anonymous-NF-PM1B1=100000000000, B2=121570702234581600
2021-08-01ViliamFNF-PM1B1=250000000, B2=40250000000
2019-04-03oodairaC-PRPM10289/246937/526598551692047/19773825995654360068925406136004167187932633 : 75EF329EC6BB28F3
2019-04-02ANONYMOUSC-PRPM10289/246937/526598551692047/19773825995654360068925406136004167187932633 : 75EF329EC6BB28F3
2019-04-01James HintzF-ECMFactor: 19773825995654360068925406136004167187932633
2017-10-12kkmrkkblmbrbkC-PRPM10289/246937/526598551692047 : 4A507D8380070493
2017-09-21Oliver KruseC-PRPM10289/246937/526598551692047 : 4A507D8380070493
2017-09-21Oliver KruseC-PRPM10289/246937/526598551692047 : 4A507D8380070493
2016-09-07kkmrkkblmbrbkNF-PM1B1=100000000, B2=10000000000, E=12
2008-08-26-anonymous-F-PM1Factor: 526598551692047