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
3333923Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
55411467221511342.3old
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
Verified2017-11-04Oliver Kruse47469800E10873E6120386653
Verified2017-12-15kkmrkkblmbrbk47469800E10873E61168094253
History
DateUserTypeResult
2022-09-06JossNF-PM1
B1=1111307, B2=226749600
2022-01-24JossNF-PM1
B1=1111307, B2=119912100
2021-05-14JossNF
no factor from 2^67 to 2^68
2021-03-09JossNF-PM1
B1=333392, B2=3667315, E=6
2017-12-15kkmrkkblmbrbkC-PRP
M3333923/5541146722151 : 47469800E10873E6
PRP: Verified
PRP without proof (not generated)
2017-11-04Oliver KruseC-PRP
M3333923/5541146722151 : 47469800E10873E6
PRP: Verified
PRP without proof (not generated)