Use the form below to do your conversion.
Solution
Step1
Log216931=Log(6931) ÷ Log(21)
Log(6931)= 3.8407958988471
Log(21)=1.3222192947339
Log216931=3.8407958988471 ÷ 1.3222192947339
Ans=2.9048100524202
Step2
Alternatively, the logarithm can be calculated like this.