Use the form below to do your conversion.
Solution
Step1
Log213109=Log(3109) ÷ Log(21)
Log(3109)= 3.4926207220432
Log(21)=1.3222192947339
Log213109=3.4926207220432 ÷ 1.3222192947339
Ans=2.6414837054288
Step2
Alternatively, the logarithm can be calculated like this.