Use the form below to do your conversion.
Solution
Step1
Log215309=Log(5309) ÷ Log(21)
Log(5309)= 3.7250127253412
Log(21)=1.3222192947339
Log215309=3.7250127253412 ÷ 1.3222192947339
Ans=2.8172427525275
Step2
Alternatively, the logarithm can be calculated like this.