Use the form below to do your conversion.
Solution
Step1
Log159971=Log(9971) ÷ Log(15)
Log(9971)= 3.9987387162558
Log(15)=1.1760912590557
Log159971=3.9987387162558 ÷ 1.1760912590557
Ans=3.4000241779422
Step2
Alternatively, the logarithm can be calculated like this.