Use the form below to do your conversion.
Solution
Step1
Log206421=Log(6421) ÷ Log(20)
Log(6421)= 3.8076026699165
Log(20)=1.301029995664
Log206421=3.8076026699165 ÷ 1.301029995664
Ans=2.9266063677289
Step2
Alternatively, the logarithm can be calculated like this.