Use the form below to do your conversion.
Solution
Step1
Log20407=Log(407) ÷ Log(20)
Log(407)= 2.6095944092252
Log(20)=1.301029995664
Log20407=2.6095944092252 ÷ 1.301029995664
Ans=2.005791117747
Step2
Alternatively, the logarithm can be calculated like this.