Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
3374983Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
33749831825.0old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-05kkmrkkblmbrbkF5AE03F3401C55EB1306005453
Verified2017-11-20Oliver KruseF5AE03F3401C55EB1284206253
History
DateUserTypeResult
2022-09-05JossNF-PM1
B1=1124994, B2=213444000
2022-01-09JossNF-PM1
B1=1124994, B2=111642300
2021-07-16JossNF
no factor from 2^68 to 2^69
2021-03-31JossNF
no factor from 2^67 to 2^68
2021-02-14JossNF-PM1
B1=337498, B2=3712481, E=6
2017-11-20Oliver KruseC-PRP
M3374983/33749831 : F5AE03F3401C55EB
PRP: Verified
PRP without proof (not generated)
2017-11-05kkmrkkblmbrbkC-PRP
M3374983/33749831 : F5AE03F3401C55EB
PRP: Verified
PRP without proof (not generated)