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

PrimeNet Exponent Status

Exponent Range:





MnDetails
109597
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
155101514473534930801395199044645496737120.22013-03-16 00:04:16
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000730 / 1566
Estimated T-Level: 32.3
TF below 2^102 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredUnknown6CF00Unknown,(aka U)
FactoredMike Gach68FC8E13970C6CF00Windows,Prime95,v11,(aka WC)
FactoredBrian J. Beesley68FC8E13970C6CF00Mac,John Sweeney,vLL1.0b1,(aka J4)
FactoredEivind Triel68FC8E13970C6CF094747Windows,Prime95,v24 final,(aka Wc1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
No proof (small exponent)
2017-09-22Oliver Kruse33ABA0398A486B041013
Verified
No proof (small exponent)
2017-10-13kkmrkkblmbrbk33ABA0398A486B0413071113
Verified
No proof (small exponent)
2020-04-17Oliver Kruse00C3C43B54AB0C5C1623353
Verified
Not Uploaded
2022-04-15LordJulius00C3C43B54AB0C5C13045753
Verified
Certified Good
2022-11-11LordJulius00C3C43B54AB0C5C14626253
History
DateUserTypeResult
2026-02-11Jason LynchNF-PM1B1=894943000, B2=137332171046070
2025-12-17ViliamFNF-PM1B1=100000000, B2=2386922057520
2022-11-11Cosmos95CERT
Proof certified good
2022-11-11LordJuliusC-PRPM109597/1551015144735349308013951990446454967 : 00C3C43B54AB0C5C
Proof Not Uploaded

Proof Power: 5

2022-05-07LordJuliusNFno factor TF: 61-62
2022-05-07LordJuliusNFno factor TF: 62-63
2022-05-07LordJuliusNFno factor TF: 60-61
2022-04-15LordJuliusC-PRPM109597/1551015144735349308013951990446454967 : 00C3C43B54AB0C5C
Proof Not Uploaded

Proof Power: 5

2022-03-07LordJuliusNFno factor TF: 54-55
2022-03-07LordJuliusNFno factor TF: 57-58
2020-04-17Oliver KruseC-PRPM109597/1551015144735349308013951990446454967 : 00C3C43B54AB0C5C
2017-10-13kkmrkkblmbrbkC-PRPM109597/1551015144735349308013951990446454967 : 33ABA0398A486B04
2017-09-22Oliver KruseC-PRPM109597/1551015144735349308013951990446454967 : 33ABA0398A486B04
2017-09-21Oliver KruseC-PRPM109597/1551015144735349308013951990446454967 : 33ABA0398A486B04
2013-03-16WileECoyoteF-ECMFactor: 1551015144735349308013951990446454967
2012-12-19alpertronNF-PM1B1=100000000, B2=2000000000, E=12
2009-01-25Sturle SundeNFno factor TF: 59-60
2009-01-01Sturle SundeNFno factor TF: 58-59
2006-02-01JossNF-PM1B1=2000000
2003-09-29-anonymous-NF-PM1B1=262144, B2=26214400, E=12
2003-02-02-anonymous-NF-PM1B1=131072, B2=13107200, E=30
2002-07-20-anonymous-NF-PM1B1=65536, B2=6553600, E=12
2002-06-02-anonymous-NF-PM1B1=32768, B2=3276800
2002-05-05-anonymous-NFno factor TF: 1-57
2001-01-08-anonymous-NF-PM1B1=1000000, B2=25000000
2000-12-14-anonymous-NFno factor TF: 1-56
2000-04-12-anonymous-NFno factor TF: 1-54
1999-09-14-anonymous-NFno factor TF: 52-53