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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3028517Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
99759349991033.2old
224138059786071444.32008-09-30 14:46:06
ECM
DigitsB1Curves
255000089 / 280
Estimated T-Level: 21.6
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-27Oliver Kruse268B782CBCB742482132053353
Verified2017-12-10kkmrkkblmbrbk268B782CBCB742482201008953
History
DateUserTypeResult
2022-01-23JossNF-PM1
B1=1000000, B2=119912100
2021-09-08Dylan DelgadoNF-PM1
B1=1000000, B2=71000000
2021-05-05JossNF
no factor from 2^67 to 2^68
2020-12-23JossNF-PM1
B1=302851, B2=3028517, E=6
2017-12-10kkmrkkblmbrbkC-PRP
M3028517/9975934999/22413805978607 : 268B782CBCB74248
PRP: Verified
PRP without proof (not generated)
2017-10-27Oliver KruseC-PRP
M3028517/9975934999/22413805978607 : 268B782CBCB74248
PRP: Verified
PRP without proof (not generated)
2008-09-30markrF
Factor: 22413805978607