Use the form below to do your conversion.
Solution
Step1
Log253991=Log(3991) ÷ Log(25)
Log(3991)= 3.601081727784
Log(25)=1.397940008672
Log253991=3.601081727784 ÷ 1.397940008672
Ans=2.5759916058235
Step2
Alternatively, the logarithm can be calculated like this.