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
3028033Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
12536056631030.2old
ECM
DigitsB1Curves
255000057 / 280
Estimated T-Level: 21.0
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-27Oliver KruseF4D4707DACE6700B118566453
Verified2017-12-10kkmrkkblmbrbkF4D4707DACE6700B1107249853
History
DateUserTypeResult
2022-01-22JossNF-PM1
B1=1000000, B2=119912100
2021-03-20JossNF
no factor from 2^67 to 2^68
2020-12-20JossNF-PM1
B1=302803, B2=3028033, E=6
2020-12-20JossNF-PM1
B1=302803
2017-12-10kkmrkkblmbrbkC-PRP
M3028033/1253605663 : F4D4707DACE6700B
PRP: Verified
PRP without proof (not generated)
2017-10-27Oliver KruseC-PRP
M3028033/1253605663 : F4D4707DACE6700B
PRP: Verified
PRP without proof (not generated)