Use the form below to do your conversion.
Solution
Step1
Log206409=Log(6409) ÷ Log(20)
Log(6409)= 3.8067902715841
Log(20)=1.301029995664
Log206409=3.8067902715841 ÷ 1.301029995664
Ans=2.925981940671
Step2
Alternatively, the logarithm can be calculated like this.