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
38419327
Composite: 1 known prime factor
Trial Factored to 273
TF target 272
Factored
FactorDigitsBitsDate
55279747542694404402492272.22015-03-14 06:46:24
LL
StatusDateUserResidueShiftSoftware
Bad2007-06-15S646200C781ABCD41E3BB9022827104Windows 64-bit,Prime95,v24 final,(aka Wc4)
Bad2007-07-24S666631C781ABCD41E3BB9022827104Windows 64-bit,Prime95,v24 final,(aka Wc4)
Bad2007-07-24S666631FF47FC59A97AA6C428207108Windows 64-bit,Prime95,v24 final,(aka Wc4)
Bad2009-04-27Senft440FDFC08E8F596E30116572Windows,Prime95,v23,(aka WZ1)
Factored2015-03-12MadPoo 🙂49C1FA87567C64EB1049059Windows 64-bit,Prime95,v26,(aka We4)
Factored2019-05-06kkmrkkblmbrbk49C1FA87567C64EB12594510Linux 64-bit,Prime95,v29.7,build 1
History
DateUserTypeResult
2019-05-06kkmrkkblmbrbkC-LL49C1FA87567C64EB
2015-03-14VictordeHollanderFFactor: 5527974754269440440249 / TF: 72-73
2015-03-14VictordeHollanderNFno factor TF: 71-72
2015-03-12MadPoo 🙂C-LL49C1FA87567C64EB
2014-12-08VictordeHollanderNFno factor TF: 70-71
2014-11-24Andrew BNFno factor TF: 69-70
2009-04-27SenftC-LL440FDFC08E8F596E
2009-03-02SenftNFno factor TF: 1-69
2009-02-21SenftNFno factor TF: 1-69
2007-07-24-anonymous-C-LLFF47FC59A97AA6C4
2007-07-24-anonymous-NF-PM1B1=415000, B2=4876250
2007-07-24-anonymous-C-LLC781ABCD41E3BB90
2007-06-15-anonymous-C-LLC781ABCD41E3BB90
2007-06-15-anonymous-NF-PM1B1=415000, B2=4876250
2007-04-23ANONYMOUSNF-PM1B1=415000, B2=4876250
2006-07-10ebravickNFno factor TF: 1-68
2003-09-14-anonymous-NFno factor TF: 1-59
2003-09-14-anonymous-NFno factor TF: 1-60