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
14591
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
729551619.5old
12956809823.62007-08-20 16:09:44
13769526711030.42007-08-20 16:09:44
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001714 / 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
Verified
No proof (small exponent)
2017-09-21Oliver KruseBFBCF40F9922EA423013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbkBFBCF40F9922EA423929213
Verified
No proof (small exponent)
2020-04-17Oliver KruseE9782C00188F977B3239353
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbkE9782C00188F977B31128153
History
DateUserTypeResult
2025-02-07masserNF-PP1Start=146/41, B1=355000000, B2=354645000000
2025-02-06masserNF-PP1Start=2/7, B1=355000000, B2=354645000000
2025-01-17masserNF-PP1Start=6/5, B1=355000000, B2=354645000000
2024-07-01kkmrkkblmbrbkC-PRPM14591/12956809/1376952671/729551 : E9782C00188F977B
2024-02-09-anonymous-NF-PM1B1=100000000000, B2=122154521813133810
2023-05-25JacobZNF-PM1B1=7500000000, B2=29520458628010350
2020-04-17Oliver KruseC-PRPM14591/729551/12956809/1376952671 : E9782C00188F977B
2017-10-12kkmrkkblmbrbkC-PRPM14591/729551/12956809/1376952671 : BFBCF40F9922EA42
2017-09-21Oliver KruseC-PRPM14591/729551/12956809/1376952671 : BFBCF40F9922EA42
2017-09-21Oliver KruseC-PRPM14591/729551/12956809/1376952671 : BFBCF40F9922EA42
2008-08-26-anonymous-FFactor: 1376952671
2008-08-26-anonymous-FFactor: 12956809
2007-08-20George WoltmanF-ECMFactor: 17840912760186839