Use the form below to do your conversion.
Solution
Step1
Log215987=Log(5987) ÷ Log(21)
Log(5987)= 3.7772092581457
Log(21)=1.3222192947339
Log215987=3.7772092581457 ÷ 1.3222192947339
Ans=2.856719209279
Step2
Alternatively, the logarithm can be calculated like this.