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
11743
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
4665617201511238.8old
98721124187218036759756159929240278336119.62017-03-12 11:19:40
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001935 / 9201
Estimated T-Level: 41.1 ⓘ
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 Kruse5E789D8FB7F8EE882013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbk5E789D8FB7F8EE882013
Verified
No proof (small exponent)
2017-12-07ATH5E789D8FB7F8EE882491213
Verified
No proof (small exponent)
2020-04-17Oliver Kruse7C57E6F19DFA8B9A2168853
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbk7C57E6F19DFA8B9A248153
History
DateUserTypeResult
2025-03-12masserNF-PP1Start=172/19, B1=430000000, B2=429570000000
2025-02-26masserNF-PP1Start=6/5, B1=430000000, B2=429570000000
2025-01-22masserNF-PP1Start=2/7, B1=430000000, B2=429570000000
2024-07-01kkmrkkblmbrbkC-PRPM11743/466561720151/987211241872180367597561599292402783 : 7C57E6F19DFA8B9A
2023-03-26-anonymous-NF-PM1B1=100000000000, B2=122192573512709700
2020-04-17Oliver KruseC-PRPM11743/466561720151/987211241872180367597561599292402783 : 7C57E6F19DFA8B9A
2017-12-07ATHC-PRPM11743/466561720151/987211241872180367597561599292402783 : 5E789D8FB7F8EE88
2017-10-02kkmrkkblmbrbkC-PRPM11743/466561720151/987211241872180367597561599292402783 : 5E789D8FB7F8EE88
2017-09-21Oliver KruseC-PRPM11743/466561720151/987211241872180367597561599292402783 : 5E789D8FB7F8EE88
2017-03-12kkmrkkblmbrbkF-ECMFactor: 987211241872180367597561599292402783
2016-09-07kkmrkkblmbrbkNF-PM1B1=100000000, B2=10000000000, E=12