Use the form below to do your conversion.
Solution
Step1
Log20647=Log(647) ÷ Log(20)
Log(647)= 2.8109042806687
Log(20)=1.301029995664
Log20647=2.8109042806687 ÷ 1.301029995664
Ans=2.1605222708445
Step2
Alternatively, the logarithm can be calculated like this.