Use the form below to do your conversion.
Solution
Step1
Log207015=Log(7015) ÷ Log(20)
Log(7015)= 3.8460276753644
Log(20)=1.301029995664
Log207015=3.8460276753644 ÷ 1.301029995664
Ans=2.9561406640756
Step2
Alternatively, the logarithm can be calculated like this.