Use the form below to do your conversion.
Solution
Step1
Log257439=Log(7439) ÷ Log(25)
Log(7439)= 3.8715145587084
Log(25)=1.397940008672
Log257439=3.8715145587084 ÷ 1.397940008672
Ans=2.769442561692
Step2
Alternatively, the logarithm can be calculated like this.