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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Exponent Range:





MnDetails
3584593
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 271
TF target 264
Factored
FactorDigitsBitsDate
736713686274771669045292376.02025-03-27 15:32:37
ECM
DigitsB1Curves
2550000170 / 280
Estimated T-Level: 23.0
TF below 2^72 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredEd LentzCA27B47BD05F23E70Windows,Prime95,v14,(aka WQ1)
Factored1999-07-27Jiri HradeckyCA27B47BD05F23E73564551Windows,Prime95,v18,(aka WU1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-03-27fordobrAE87CA77FA909BB31247681053
History
DateUserTypeResult
2025-03-27LookASCERT
Proof certified good
2025-03-27fordobrC-PRPM3584593/73671368627477166904529 : AE87CA77FA909BB3
Proof Certified Good

Proof Power: 7

2025-03-27fordobrF-ECMFactor: 73671368627477166904529 / ECM curve 6, B1=131542, B2=275660385, Edwards Sigma=7720208908650297
2023-05-29Sid & AndyNF-PM1B1=5800000, B2=17983285320
2023-03-05JossNF-PM1B1=1000000, B2=217643790
2021-11-09ArtyomPNF-PP1Start=6/5, B1=50000, B2=2500000
2021-11-09ArtyomPNF-PP1Start=2/7, B1=50000, B2=2500000
2021-03-16-anonymous-NFno factor TF: 70-71
2021-03-16-anonymous-NFno factor TF: 69-70
2020-12-20axnNFno factor TF: 68-69
2020-02-09BigBrotherNF-PM1B1=3000000, B2=90000000
2018-09-24TJAOINFno factor TF: 67-68
2017-01-20Gordon SpenceNFno factor TF: 66-67
2016-06-02JossNF-PM1B1=170000, B2=3187500, E=6
2016-05-12Squeeky_SquirrelNF-PM1B1=225000, B2=6581250, E=12
2016-02-26ramgeisNFno factor TF: 65-66
2016-02-23Mark RoseNFno factor TF: 62-63
2016-02-23Mark RoseNFno factor TF: 1-60
2015-02-07VictordeHollanderNFno factor TF: 64-65
2015-02-07VictordeHollanderNFno factor TF: 63-64
2012-07-02GrunwalderGIMPNFno factor TF: 1-63
2011-12-28Squeeky_SquirrelNF-PM1B1=85000, B2=1593750, E=6
2011-06-22Grant McCrackenNFno factor TF: 61-62
2009-07-09Carsten KossendeyNF-PM1B1=20000, B2=245000
2009-03-14S485122NFno factor TF: 60-61
1999-07-27-anonymous-C-LLCA27B47BD05F23E7