Use the form below to do your conversion.
Solution
Step1
Log215563=Log(5563) ÷ Log(21)
Log(5563)= 3.7453090599408
Log(21)=1.3222192947339
Log215563=3.7453090599408 ÷ 1.3222192947339
Ans=2.8325929555388
Step2
Alternatively, the logarithm can be calculated like this.