Use the form below to do your conversion.
Solution
Step1
Log257987=Log(7987) ÷ Log(25)
Log(7987)= 3.9023836844325
Log(25)=1.397940008672
Log257987=3.9023836844325 ÷ 1.397940008672
Ans=2.7915244289628
Step2
Alternatively, the logarithm can be calculated like this.