Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:





MnDetails
5112017
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 273
TF target 265
Factored
FactorDigitsBitsDate
5037730335392644732122232478.72025-01-04 01:18:56
ECM
DigitsB1Curves
255000010 / 280
Estimated T-Level: 20.2
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1998-07-29Bob Margulies99D9B05AF97CFF0C0Windows,Prime95,v16,(aka WS1)
Factored2000-05-24Jan Kuipers99D9B05AF97CFF0C864797Linux 32-bit,Prime95,v20,(aka WW2)
PRP
StatusProofDateUserResidueShiftTypeBase
Factored
Certified Good
Power=7
2025-01-09Oliver Kruse5AC48A64D5A377CA274135113
Factored
Certified Good
Power=7
2025-01-10Torchwood Institute5AC48A64D5A377CA242096513
Factored
Not Uploaded
Power=7
2025-01-10Torchwood Institute5AC48A64D5A377CA400530113
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-01-10kurly5AC48A64D5A377CA1107192353
History
DateUserTypeResult
2025-01-10garoCERT
Proof certified good
2025-01-10kurlyC-PRPM5112017/503773033539264473212223 : 5AC48A64D5A377CA
Proof Certified Good

Proof Power: 7

2025-01-10Torchwood InstituteC-PRP5AC48A64D5A377CA
Proof Certified Good

Proof Power: 7

2025-01-10Sly_007CERT
Proof certified good
2025-01-10Torchwood InstituteC-PRP5AC48A64D5A377CA
Proof Certified Good

Proof Power: 7

2025-01-09StixxyCERT
Proof certified good
2025-01-09Oliver KruseC-PRP5AC48A64D5A377CA
Proof Certified Good

Proof Power: 7

2025-01-04fordobrF-ECMFactor: 503773033539264473212223 / ECM curve 1, B1=50000, B2=31130190, Edwards Sigma=2660158423354465
2024-07-29Andrew BNFno factor TF: 72-73
2024-07-29Andrew BNFno factor TF: 71-72
2022-07-11Sid & AndyNF-PM1B1=4000000, B2=10347370110
2022-01-10mikrNFno factor TF: 70-71
2020-12-15-anonymous-NFno factor TF: 69-70
2020-11-30TJAOINFno factor TF: 68-69
2019-01-15KingNF-PM1B1=750000, B2=17500000
2018-06-20ramgeisNFno factor TF: 67-68
2016-05-17Gordon SpenceNFno factor TF: 66-67
2016-02-23Mark RoseNFno factor TF: 62-63
2015-08-05snme2pm1NFno factor TF: 65-66
2014-12-14VictordeHollanderNFno factor TF: 64-65
2014-12-14VictordeHollanderNFno factor TF: 63-64
2009-09-01USAFSSNF-PM1B1=55000, B2=921250, E=6
2009-07-27GrunwalderGIMPNFno factor TF: 1-63
2008-12-29Sturle SundeNFno factor TF: 61-62
2000-05-24Jan KuipersC-LL99D9B05AF97CFF0C
2000-04-05Jan KuipersNF-PM1B1=25000, B2=181250
1998-07-29-anonymous-C-LL99D9B05AF97CFF0C
1998-06-07-anonymous-NFno factor TF: 1-61