Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
14939
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
29879514.9old
8276207723.02008-08-26 19:58:44
15607072091030.52008-08-26 19:58:44
P-1 factors
DateFactorsB1B2
2022-02-18No new factors discovered1000000000010000000000
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001436 / 9201
Estimated T-Level: 40.8 ⓘ
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver Kruse9DFF8E875FFF403E3013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbk9DFF8E875FFF403E3102913
Verified
No proof (small exponent)
2020-04-17Oliver Kruse163542F2F93A88533979053
Factored
No proof (small exponent)
2022-05-12Jorge Coveiro163542F2F93A885311364353
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbk163542F2F93A88533663153
History
DateUserTypeResult
2025-02-04masserNF-PP1Start=2/7, B1=355000000, B2=354645000000
2025-02-02masserNF-PP1Start=139/11, B1=355000000, B2=354645000000
2025-01-12masserNF-PP1Start=6/5, B1=355000000, B2=354645000000
2024-07-01kkmrkkblmbrbkC-PRPM14939/1560707209/29879/8276207 : 163542F2F93A8853
2024-05-21Anton RepkoNF-PM1B1=1000000000000, B2=1401075893663576130
2022-05-12Jorge CoveiroC-PRPM14939/29879 : 163542F2F93A8853
2022-02-18Ethan O'ConnorNF-PM1B1=10000000000, B2=91247729511548610
2022-02-18Ethan O'ConnorF-PM1Factor: 385939152794990662177 / B1=10000000000
2022-01-26Ethan O'ConnorNF-PM1B1=10000000000, B2=51492389653234530
2020-04-17Oliver KruseC-PRPM14939/29879/8276207/1560707209 : 163542F2F93A8853
2017-10-12kkmrkkblmbrbkC-PRPM14939/29879/8276207/1560707209 : 9DFF8E875FFF403E
2017-09-21Oliver KruseC-PRPM14939/29879/8276207/1560707209 : 9DFF8E875FFF403E
2017-09-21Oliver KruseC-PRPM14939/29879/8276207/1560707209 : 9DFF8E875FFF403E
2008-08-26-anonymous-FFactor: 1560707209
2008-08-26-anonymous-FFactor: 8276207