Use the form below to do your conversion.
Solution
Step1
Log20721=Log(721) ÷ Log(20)
Log(721)= 2.8579352647194
Log(20)=1.301029995664
Log20721=2.8579352647194 ÷ 1.301029995664
Ans=2.1966713098424
Step2
Alternatively, the logarithm can be calculated like this.