Use the form below to do your conversion.
Solution
Step1
Log215161=Log(5161) ÷ Log(21)
Log(5161)= 3.71273385907
Log(21)=1.3222192947339
Log215161=3.71273385907 ÷ 1.3222192947339
Ans=2.8079561944504
Step2
Alternatively, the logarithm can be calculated like this.