Use the form below to do your conversion.
Solution
Step1
Log213937=Log(3937) ÷ Log(21)
Log(3937)= 3.5951654147902
Log(21)=1.3222192947339
Log213937=3.5951654147902 ÷ 1.3222192947339
Ans=2.7190386867813
Step2
Alternatively, the logarithm can be calculated like this.