Use the form below to do your conversion.
Solution
Step1
Log1215991=Log(15991) ÷ Log(12)
Log(15991)= 4.2038756232773
Log(12)=1.0791812460476
Log1215991=4.2038756232773 ÷ 1.0791812460476
Ans=3.8954305763499
Step2
Alternatively, the logarithm can be calculated like this.