Use the form below to do your conversion.
Solution
Step1
Log201591=Log(1591) ÷ Log(20)
Log(1591)= 3.2016701796466
Log(20)=1.301029995664
Log201591=3.2016701796466 ÷ 1.301029995664
Ans=2.4608734543531
Step2
Alternatively, the logarithm can be calculated like this.