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

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MnStatusDetails
14347Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1183188036979538742550062892786.6old
447711231337067898392869962124931101.82017-06-06 21:21:51
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001264 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse9A6773D0618A24332013
Verified2017-10-02kkmrkkblmbrbk9A6773D0618A24332013
Verified2017-12-07ATH9A6773D0618A243321307513
Verified2020-04-17Oliver Kruse3A1D4DB85845AF022596753
Verified2024-07-01kkmrkkblmbrbk3A1D4DB85845AF0221421853
P-1 factors
DateFactorB1B2
2024-02-09529726572939397517267559167845016614482020599636413034961100000000000122154521813133808
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14347/118318803697953874255006289/4477112313370678983928699621249 : 3A1D4DB85845AF02
PRP: Verified
PRP without proof (small exponent)
2024-02-09-Anonymous-F-PM1
Factors: 118318803697953874255006289,4477112313370678983928699621249 / (P-1, B1=100000000000, B2=122154521813133810)
2023-05-24JacobZNF-PM1
B1=7600000000, B2=30020805351537000
2022-01-24Ethan O'ConnorNF-PM1
B1=1000000000, B2=3088390743498060
2020-04-17Oliver KruseC-PRP
M14347/118318803697953874255006289/4477112313370678983928699621249 : 3A1D4DB85845AF02
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M14347/118318803697953874255006289/4477112313370678983928699621249 : 9A6773D0618A2433
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M14347/118318803697953874255006289/4477112313370678983928699621249 : 9A6773D0618A2433
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14347/118318803697953874255006289/4477112313370678983928699621249 : 9A6773D0618A2433
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14347/118318803697953874255006289/4477112313370678983928699621249 : 9A6773D0618A2433
PRP without proof (not generated)
2017-06-06kkmrkkblmbrbkF-ECM
Factor: 4477112313370678983928699621249 / (ECM curve 181, B1=1000000, B2=100000000)