Use the form below to do your conversion.
Solution
Step1
Log256991=Log(6991) ÷ Log(25)
Log(6991)= 3.844539302129
Log(25)=1.397940008672
Log256991=3.844539302129 ÷ 1.397940008672
Ans=2.7501461280739
Step2
Alternatively, the logarithm can be calculated like this.