Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
40493
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
924332091291136.4old
16675104864891340.62008-08-26 19:59:59
1713985383001979511857.32009-04-22 01:32:26
2693666863603897587133490892787.82016-08-16 08:00:30
7208438126237267004369004417956799111338125.82018-10-31 06:03:19
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004492 / 4588
Estimated T-Level: 39.9 ⓘ
TF below 2^128 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 Kruse4416A5FBBF928ADE4013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk4416A5FBBF928ADE4013
Factored
No proof (small exponent)
2017-12-07ATH4416A5FBBF928ADE4318013
Verified
No proof (small exponent)
2018-10-31kkmrkkblmbrbk28B346EDA839BB8F5702953
Verified
No proof (small exponent)
2018-11-02Oliver Kruse28B346EDA839BB8F52058853
History
DateUserTypeResult
2025-07-08masserNF-PM1B1=8200000000, B2=3410930151829200
2023-04-06JacobZNF-PM1B1=900000000, B2=807307429628700
2021-12-18ANONYMOUSNF-PM1B1=1000000000
2021-05-05ATHNF-PP1Start=2/7, B1=100000000, B2=10000000000
2018-11-02Oliver KruseC-PRPM40493/92433209129/1667510486489/171398538300197951/269366686360389758713349089/72084381262372670043690044179567991113 : 28B346EDA839BB8F
2018-10-31kkmrkkblmbrbkC-PRPM40493/92433209129/1667510486489/171398538300197951/269366686360389758713349089/72084381262372670043690044179567991113 : 28B346EDA839BB8F
2018-10-31Niels_Mache_NextcloudF-ECMFactor: 72084381262372670043690044179567991113
2017-12-07ATHC-PRPM40493/92433209129/1667510486489/171398538300197951/269366686360389758713349089 : 4416A5FBBF928ADE
2017-10-02kkmrkkblmbrbkC-PRPM40493/92433209129/1667510486489/171398538300197951/269366686360389758713349089 : 4416A5FBBF928ADE
2017-09-21Oliver KruseC-PRPM40493/92433209129/1667510486489/171398538300197951/269366686360389758713349089 : 4416A5FBBF928ADE
2017-09-21Oliver KruseC-PRPM40493/92433209129/1667510486489/171398538300197951/269366686360389758713349089 : 4416A5FBBF928ADE
2016-09-13kkmrkkblmbrbkNF-PM1B1=100000000, B2=2000000000, E=12
2016-08-16kkmrkkblmbrbkF-ECMFactor: 269366686360389758713349089
2009-04-22Matthias WurtingerF-ECMFactor: 171398538300197951
2008-08-26-anonymous-FFactor: 1667510486489