Use the form below to do your conversion.
Solution
Step1
Log257981=Log(7981) ÷ Log(25)
Log(7981)= 3.9020573108085
Log(25)=1.397940008672
Log257981=3.9020573108085 ÷ 1.397940008672
Ans=2.7912909614163
Step2
Alternatively, the logarithm can be calculated like this.