Use the form below to do your conversion.
Solution
Step1
Log215603=Log(5603) ÷ Log(21)
Log(5603)= 3.7484206224676
Log(21)=1.3222192947339
Log215603=3.7484206224676 ÷ 1.3222192947339
Ans=2.8349462433324
Step2
Alternatively, the logarithm can be calculated like this.