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

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Exponent Range:










MnStatusDetails
26339Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
83231766791033.0old
68708814236147925064012272.52009-04-06 12:35:48
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000001218 / 4588
Estimated T-Level: 36.3
TF below 2^116 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseE0188AF3D2C4E9E62013
Verified2017-10-12kkmrkkblmbrbkE0188AF3D2C4E9E621875113
Verified2020-04-17Oliver Kruse840DBB9E2A80E33522315453
Verified2024-07-01kkmrkkblmbrbk840DBB9E2A80E33522145253
History
DateUserTypeResult
2024-11-25masserNF-PP1
Start=2/7, B1=100000000, B2=99900000000
2024-11-08masserNF-PP1
Start=127/37, B1=100000000, B2=99900000000
2024-11-07masserNF-PP1
Start=6/5, B1=100000000, B2=99900000000
2024-07-01kkmrkkblmbrbkC-PRP
M26339/6870881423614792506401/8323176679 : 840DBB9E2A80E335
PRP: Verified
PRP without proof (small exponent)
2023-04-06nordiNF-PM1
B1=5000000000, B2=1516930270635780
2023-03-11nordiNF-PM1
B1=5000000000
2020-04-17Oliver KruseC-PRP
M26339/8323176679/6870881423614792506401 : 840DBB9E2A80E335
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M26339/8323176679/6870881423614792506401 : E0188AF3D2C4E9E6
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M26339/8323176679/6870881423614792506401 : E0188AF3D2C4E9E6
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M26339/8323176679/6870881423614792506401 : E0188AF3D2C4E9E6
PRP without proof (not generated)
2016-12-15kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12
2009-04-06Matthias WurtingerF-ECM
Factor: 6870881423614792506401