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
48148157
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 555000
B2 = 12348750
LL
StatusDateUserResidueShiftSoftware
Bad2010-07-16jfjbF6562F934FAC1E1A18195006Windows,Prime95,v25.9,build 4
Bad2017-05-13-anonymous-AA5D1A9DF23A86A535471492Windows 64-bit,Prime95,v28.10,build 1
Verified2017-05-21MadPoo 🙂2D0438A97D3B787932205962Windows 64-bit,Prime95,v26,(aka We4)
Verified2017-05-24Mark Rose2D0438A97D3B787924233887Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2017-12-22Sid & AndyNFno factor TF: 72-73
2017-05-24Mark RoseC-LL2D0438A97D3B7879
2017-05-21MadPoo 🙂C-LL2D0438A97D3B7879
2017-05-13-anonymous-C-LLAA5D1A9DF23A86A5
2015-12-04-anonymous-NFno factor TF: 71-72
2015-10-09GregNFno factor TF: 70-71
2015-08-05Gordon SpenceNFno factor TF: 69-70
2010-07-16jfjbC-LLF6562F934FAC1E1A
2010-05-13jfjbNF-PM1B1=555000, B2=12348750
2008-05-10delongNFno factor TF: 1-69
2003-12-13Thomas MullenNFno factor TF: 1-62
2003-10-14Thomas MullenNFno factor TF: 1-62
2003-09-21Thomas MullenNFno factor TF: 1-61
2003-06-09Thomas MullenNFno factor TF: 1-60
2003-06-06Thomas MullenNFno factor TF: 1-59