Use the form below to do your conversion.
Solution
Step1
Log28391=Log(391) ÷ Log(28)
Log(391)= 2.5921767573959
Log(28)=1.4471580313422
Log28391=2.5921767573959 ÷ 1.4471580313422
Ans=1.7912188587943
Step2
Alternatively, the logarithm can be calculated like this.