Use the form below to do your conversion.
Solution
Step1
Log201391=Log(1391) ÷ Log(20)
Log(1391)= 3.143327129992
Log(20)=1.301029995664
Log201391=3.143327129992 ÷ 1.301029995664
Ans=2.4160297152779
Step2
Alternatively, the logarithm can be calculated like this.