Use the form below to do your conversion.
Solution
Step1
Log133991=Log(3991) ÷ Log(13)
Log(3991)= 3.601081727784
Log(13)=1.1139433523068
Log133991=3.601081727784 ÷ 1.1139433523068
Ans=3.2327332627163
Step2
Alternatively, the logarithm can be calculated like this.