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:





MnDetails
17504141
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 275
TF target 269
Factored
FactorDigitsBitsDate
42631548996643717453019541971028922695240739945148.3old
ECM
DigitsB1Curves
255000040 / 280
Estimated T-Level: 20.7
TF below 2^64 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2019-02-19M8909387BDA827E6F5BE5A7C11633287553
Verified
PRP without proof (not generated)
2019-03-30ANONYMOUSBDA827E6F5BE5A7C1772130153
Verified
Certified Good
2024-09-30kkmrkkblmbrbkBDA827E6F5BE5A7C1317306153
History
DateUserTypeResult
2024-09-30jsk1356CERT
Proof certified good
2024-09-30kkmrkkblmbrbkC-PRPM17504141/426315489966437174530195419710289226952407399 : BDA827E6F5BE5A7C
Proof Certified Good

Proof Power: 8

2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 74-75
2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 73-74
2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 72-73
2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 71-72
2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 70-71
2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 69-70
2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 68-69
2024-07-14J. Gareth "Kit" MoretonNFno factor TF: 67-68
2020-03-14b3s23loveNF-PM1B1=152429
2020-03-09Christoph ZengerNFno factor TF: 65-75
2020-01-23Christoph ZengerNF-PM1B1=1000000, B2=30000000
2019-03-30ANONYMOUSC-PRPM17504141/426315489966437174530195419710289226952407399 : BDA827E6F5BE5A7C
2019-02-19M8909387C-PRPM17504141/426315489966437174530195419710289226952407399 : BDA827E6F5BE5A7C
2001-09-22-anonymous-NFno factor TF: 1-65
2001-03-17Net_ForceNFno factor TF: 1-59
2001-02-11Net_ForceNFno factor TF: 1-58