Use the form below to do your conversion.
Solution
Step1
Log251981=Log(1981) ÷ Log(25)
Log(1981)= 3.2968844755385
Log(25)=1.397940008672
Log251981=3.2968844755385 ÷ 1.397940008672
Ans=2.3583876669145
Step2
Alternatively, the logarithm can be calculated like this.