Use the form below to do your conversion.
Solution
Step1
Log215605=Log(5605) ÷ Log(21)
Log(5605)= 3.748575616931
Log(21)=1.3222192947339
Log215605=3.748575616931 ÷ 1.3222192947339
Ans=2.8350634662954
Step2
Alternatively, the logarithm can be calculated like this.