Use the form below to do your conversion.
Solution
Step1
Log123991=Log(3991) ÷ Log(12)
Log(3991)= 3.601081727784
Log(12)=1.0791812460476
Log123991=3.601081727784 ÷ 1.0791812460476
Ans=3.3368646285993
Step2
Alternatively, the logarithm can be calculated like this.