Use the form below to do your conversion.
Solution
Step1
Log215915=Log(5915) ÷ Log(21)
Log(5915)= 3.7719547489639
Log(21)=1.3222192947339
Log215915=3.7719547489639 ÷ 1.3222192947339
Ans=2.8527452019394
Step2
Alternatively, the logarithm can be calculated like this.