Use the form below to do your conversion.
Solution
Step1
Log20641=Log(641) ÷ Log(20)
Log(641)= 2.8068580295188
Log(20)=1.301029995664
Log20641=2.8068580295188 ÷ 1.301029995664
Ans=2.1574122340556
Step2
Alternatively, the logarithm can be calculated like this.