Use the form below to do your conversion.
Solution
Step1
Log215135=Log(5135) ÷ Log(21)
Log(5135)= 3.7105404479333
Log(21)=1.3222192947339
Log215135=3.7105404479333 ÷ 1.3222192947339
Ans=2.8062973084053
Step2
Alternatively, the logarithm can be calculated like this.