Use the form below to do your conversion.
Solution
Step1
Log215507=Log(5507) ÷ Log(21)
Log(5507)= 3.7409150764813
Log(21)=1.3222192947339
Log215507=3.7409150764813 ÷ 1.3222192947339
Ans=2.8292697674134
Step2
Alternatively, the logarithm can be calculated like this.