Use the form below to do your conversion.
Solution
Step1
Log72161=Log(2161) ÷ Log(7)
Log(2161)= 3.3346547668832
Log(7)=0.84509804001426
Log72161=3.3346547668832 ÷ 0.84509804001426
Ans=3.9458791867829
Step2
Alternatively, the logarithm can be calculated like this.