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
13337
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
20278064859405703881592270.8old
692507982230058637735251132685.82008-08-26 19:58:40
1429135432127436241656776152652404935113.52010-05-27 17:17:49
21049134748302573391125487541363315052911124805748157.22025-08-07 17:26:37
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001587 / 9201
Estimated T-Level: 40.9 ⓘ
TF below 2^131 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 Kruse117AC8712BEDE8E93013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk117AC8712BEDE8E93013
Factored
No proof (small exponent)
2017-12-07ATH117AC8712BEDE8E93927113
Factored
No proof (small exponent)
2020-04-17Oliver Kruse363E50E1E982B0573476153
Factored
No proof (small exponent)
2024-07-01kkmrkkblmbrbk363E50E1E982B0573687953
Verified
No proof (small exponent)
2025-08-14Michel Yamagishi363E50E1E982B0574948653
History
DateUserTypeResult
2025-08-14Michel YamagishiC-PRPM13337/2027806485940570388159/69250798223005863773525113/14291354321274362416567761526524049/210491347483025733911254875413633150529111248057 : 363E50E1E982B057
2025-08-07Ryan PropperF-ECMFactor: 210491347483025733911254875413633150529111248057
2025-02-27masserNF-PP1Start=163/29, B1=430000000, B2=429570000000
2025-02-02masserNF-PP1Start=2/7, B1=430000000, B2=429570000000
2025-01-29masserNF-PP1Start=6/5, B1=430000000, B2=429570000000
2024-07-01kkmrkkblmbrbkC-PRPM13337/14291354321274362416567761526524049/2027806485940570388159/69250798223005863773525113 : 363E50E1E982B057
2023-12-19-anonymous-NF-PM1B1=100000000000, B2=122154521813133810
2023-05-18JacobZNF-PM1B1=8200000000, B2=35024272926292650
2022-02-05JossNF-PM1B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRPM13337/2027806485940570388159/69250798223005863773525113/14291354321274362416567761526524049 : 363E50E1E982B057
2017-12-07ATHC-PRPM13337/2027806485940570388159/69250798223005863773525113/14291354321274362416567761526524049 : 117AC8712BEDE8E9
2017-10-02kkmrkkblmbrbkC-PRPM13337/2027806485940570388159/69250798223005863773525113/14291354321274362416567761526524049 : 117AC8712BEDE8E9
2017-09-21Oliver KruseC-PRPM13337/known_factors : 117AC8712BEDE8E9
2010-05-27James HintzF-ECMFactor: 14291354321274362416567761526524049
2008-08-26-anonymous-F-ECMFactor: 69250798223005863773525113