Use the form below to do your conversion.
Solution
Step1
Log259991=Log(9991) ÷ Log(25)
Log(9991)= 3.9996089589714
Log(25)=1.397940008672
Log259991=3.9996089589714 ÷ 1.397940008672
Ans=2.8610733895304
Step2
Alternatively, the logarithm can be calculated like this.