Use the form below to do your conversion.
Solution
Step1
Log281391=Log(1391) ÷ Log(28)
Log(1391)= 3.143327129992
Log(28)=1.4471580313422
Log281391=3.143327129992 ÷ 1.4471580313422
Ans=2.172069022121
Step2
Alternatively, the logarithm can be calculated like this.