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

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Exponent Range:





MnDetails
9539
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
19079514.2old
2435521258246871547.8old
53973976236603793497854514742143037736118.72018-06-09 16:37:06
22321258627448959796170813134446798431939127.42018-06-09 21:49:19
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006006 / 16550
Estimated T-Level: 46.8 ⓘ
TF below 2^151 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 Kruse31A831076CF966962013
Factored
No proof (small exponent)
2017-10-12kkmrkkblmbrbk31A831076CF966962194813
Verified
No proof (small exponent)
2018-06-09Daniil TsarkovCD2CF4C2E3E2A3664814453
Factored
No proof (small exponent)
2018-06-10Luigi MorelliCD2CF4C2E3E2A3663312853
Verified
No proof (small exponent)
2018-06-11Oliver KruseCD2CF4C2E3E2A3664244653
Verified
No proof (small exponent)
2019-05-30Daniil TsarkovCD2CF4C2E3E2A3664540653
Factored
No proof (small exponent)
2022-05-12Jorge CoveiroCD2CF4C2E3E2A3661208553
History
DateUserTypeResult
2025-03-30masserNF-PP1Start=129/17, B1=1000000000, B2=999000000000
2023-06-26JacobZNF-PM1B1=61000000000, B2=254995794420917550
2022-05-12Jorge CoveiroC-PRPM9539/19079 : CD2CF4C2E3E2A366
2022-01-03ANONYMOUSNF-PM1B1=100000000
2019-05-30Daniil TsarkovC-PRPM9539/19079/243552125824687/539739762366037934978545147421430377/223212586274489597961708131344467984319 : CD2CF4C2E3E2A366
2018-06-11Oliver KruseC-PRPM9539/19079/243552125824687/539739762366037934978545147421430377/223212586274489597961708131344467984319 : CD2CF4C2E3E2A366
2018-06-10Luigi MorelliC-PRPM9539/19079/243552125824687/539739762366037934978545147421430377 : CD2CF4C2E3E2A366
2018-06-09Daniil TsarkovC-PRPM9539/19079/243552125824687/539739762366037934978545147421430377/223212586274489597961708131344467984319 : CD2CF4C2E3E2A366
2018-06-09HexaflexagonF-ECMFactor: 223212586274489597961708131344467984319
2018-06-09HexaflexagonF-ECMFactor: 539739762366037934978545147421430377
2017-10-12kkmrkkblmbrbkC-PRPM9539/19079/243552125824687 : 31A831076CF96696
2017-09-21Oliver KruseC-PRPM9539/19079/243552125824687 : 31A831076CF96696
2017-09-21Oliver KruseC-PRPM9539/19079/243552125824687 : 31A831076CF96696