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

PrimeNet Exponent Status

Exponent Range:





MnDetails
12539
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-03-30-anonymous-ECM2026-03-302026-03-31
Factored
FactorDigitsBitsDate
100313616.6old
6677263283459291549.22008-08-26 19:58:37
34229866862401988871961.62008-08-29 02:24:31
269462836812645624914805150487066938539674343141.02023-05-11 11:33:26
P-1 factors
DateFactorsB1B2
2023-05-112694628368126456249148051504870669385396743
100000000000120417199046794656
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001454 / 9201
Estimated T-Level: 40.8 ⓘ
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 Kruse8317BA816586CDFE3013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk8317BA816586CDFE3013
Factored
No proof (small exponent)
2017-12-07ATH8317BA816586CDFE31227513
Factored
No proof (small exponent)
2020-04-17Oliver Kruse0D489EB2A24864E13932153
Verified
No proof (small exponent)
2023-05-11Anton Repko0D489EB2A24864E14892953
Verified
No proof (small exponent)
2023-05-11retsu0D489EB2A24864E14416753
Verified
No proof (small exponent)
2023-05-11retsu1DC61ECF28607DED4489055
Verified
No proof (small exponent)
2023-05-11retsu1DC61ECF28607DED4966255
Verified
No proof (small exponent)
2023-05-11retsuA5A6794DB19CF42C4212157
Verified
No proof (small exponent)
2023-05-11retsuA5A6794DB19CF42C41110457
History
DateUserTypeResult
2025-03-14masserNF-PP1Start=110/29, B1=430000000, B2=429570000000
2025-02-19masserNF-PP1Start=6/5, B1=430000000, B2=429570000000
2025-01-18masserNF-PP1Start=2/7, B1=430000000, B2=429570000000
2023-05-11retsuC-PRPERROR PARSING RESULT
2023-05-11retsuC-PRPERROR PARSING RESULT
2023-05-11retsuC-PRP
M12539/100313/667726328345929/3422986686240198887/2694628368126456249148051504870669385396743 : 1DC61ECF28607DED
2023-05-11retsuC-PRP
M12539/100313/667726328345929/3422986686240198887/2694628368126456249148051504870669385396743 : 1DC61ECF28607DED
2023-05-11retsuC-PRPM12539/100313/667726328345929/3422986686240198887/2694628368126456249148051504870669385396743 : 0D489EB2A24864E1
2023-05-11Anton RepkoC-PRPM12539/100313/667726328345929/3422986686240198887/2694628368126456249148051504870669385396743 : 0D489EB2A24864E1
2023-05-11Anton RepkoF-PM1Factor: 2694628368126456249148051504870669385396743 / B1=100000000000, B2=120417199046794650
2022-02-05JossNF-PM1B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRPM12539/100313/667726328345929/3422986686240198887 : 0D489EB2A24864E1
2017-12-07ATHC-PRPM12539/100313/667726328345929/3422986686240198887 : 8317BA816586CDFE
2017-10-02kkmrkkblmbrbkC-PRPM12539/100313/667726328345929/3422986686240198887 : 8317BA816586CDFE
2017-09-21Oliver KruseC-PRPM12539/known_factors : 8317BA816586CDFE
2008-08-29-anonymous-F-ECMFactor: 3422986686240198887
2008-08-26-anonymous-F-PM1Factor: 667726328345929