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
3054811Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
447878609819991445.3old
ECM
DigitsB1Curves
255000061 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-28Oliver KruseC397B4BA1BD38D571187182353
Verified2017-12-11kkmrkkblmbrbkC397B4BA1BD38D571205512053
History
DateUserTypeResult
2022-02-05JossNF-PM1
B1=1000000, B2=119912100
2021-05-07JossNF
no factor from 2^67 to 2^68
2021-01-16JossNF-PM1
B1=305481, B2=3054811, E=6
2017-12-11kkmrkkblmbrbkC-PRP
M3054811/44787860981999 : C397B4BA1BD38D57
PRP: Verified
PRP without proof (not generated)
2017-10-28Oliver KruseC-PRP
M3054811/44787860981999 : C397B4BA1BD38D57
PRP: Verified
PRP without proof (not generated)