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
43548073
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 725000
B2 = 725000
LL
StatusDateUserResidueShiftSoftware
Bad2010-07-20Scott Kurowski365F94D56B3361C714739824Windows,Prime95,v24 final,(aka Wc1)
Bad2016-08-28Xolotl000000000000000015799536Linux 64-bit,Prime95,v28.9,build 2
Verified2016-08-30MadPoo 🙂AD1A1F25CE0AD5DC6010257Windows 64-bit,Prime95,v26,(aka We4)
Verified2016-08-31Mark RoseAD1A1F25CE0AD5DC16800108Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2022-04-10TheJudgerNFno factor TF: 73-74
2022-04-10TheJudgerNFno factor TF: 72-73
2016-08-31Mark RoseC-LLAD1A1F25CE0AD5DC
2016-08-30MadPoo 🙂C-LLAD1A1F25CE0AD5DC
2016-08-28XolotlC-LL54AB719AC73A93__
2015-09-11-anonymous-NFno factor TF: 71-72
2015-09-11-anonymous-NFno factor TF: 70-71
2015-03-29LaurVNFno factor TF: 69-70
2013-06-23america64NFno factor TF: 68-69
2009-09-22Stressed OutNF-PM1B1=725000
2007-09-13ITSNFno factor TF: 1-68