Use the form below to do your conversion.
Solution
Step1
Log1315991=Log(15991) ÷ Log(13)
Log(15991)= 4.2038756232773
Log(13)=1.1139433523068
Log1315991=4.2038756232773 ÷ 1.1139433523068
Ans=3.7738684059397
Step2
Alternatively, the logarithm can be calculated like this.