Use the form below to do your conversion.
Solution
Step1
Log211315=Log(1315) ÷ Log(21)
Log(1315)= 3.1189257528258
Log(21)=1.3222192947339
Log211315=3.1189257528258 ÷ 1.3222192947339
Ans=2.3588566323663
Step2
Alternatively, the logarithm can be calculated like this.