Use the form below to do your conversion.
Solution
Step1
Log152161=Log(2161) ÷ Log(15)
Log(2161)= 3.3346547668832
Log(15)=1.1760912590557
Log152161=3.3346547668832 ÷ 1.1760912590557
Ans=2.8353707598854
Step2
Alternatively, the logarithm can be calculated like this.