Use the form below to do your conversion.
Solution
Step1
Log213515=Log(3515) ÷ Log(21)
Log(3515)= 3.5459253293558
Log(21)=1.3222192947339
Log213515=3.5459253293558 ÷ 1.3222192947339
Ans=2.6817982035797
Step2
Alternatively, the logarithm can be calculated like this.