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

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MnStatusDetails
14461Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
578441619.1old
15849257823.92008-08-26 19:58:43
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001265 / 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 KruseC1984AB3B5F143302013
Verified2017-10-12kkmrkkblmbrbkC1984AB3B5F143302717313
Verified2020-04-17Oliver Kruse9460A44924BF7CF12532053
Verified2024-07-01kkmrkkblmbrbk9460A44924BF7CF121405653
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14461/15849257/578441 : 9460A44924BF7CF1
PRP: Verified
PRP without proof (small exponent)
2024-02-09-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2022-02-18Ethan O'ConnorNF-PM1
B1=2000000000, B2=31241992006174950
2022-01-24Ethan O'ConnorNF-PM1
B1=2000000000
2020-04-17Oliver KruseC-PRP
M14461/578441/15849257 : 9460A44924BF7CF1
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14461/578441/15849257 : C1984AB3B5F14330
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14461/578441/15849257 : C1984AB3B5F14330
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14461/578441/15849257 : C1984AB3B5F14330
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 15849257