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
3361829Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
27701470971031.4old
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
Verified2017-11-05Oliver KruseE4EAB645E678DD27124392653
Verified2017-12-15kkmrkkblmbrbkE4EAB645E678DD271315008753
History
DateUserTypeResult
2022-09-06JossNF-PM1
B1=1120609, B2=218479800
2022-01-09JossNF-PM1
B1=1120609, B2=111642300
2021-05-03JossNF
no factor from 2^67 to 2^68
2021-03-11JossNF-PM1
B1=336182, B2=3698011, E=6
2017-12-15kkmrkkblmbrbkC-PRP
M3361829/2770147097 : E4EAB645E678DD27
PRP: Verified
PRP without proof (not generated)
2017-11-05Oliver KruseC-PRP
M3361829/2770147097 : E4EAB645E678DD27
PRP: Verified
PRP without proof (not generated)