Use the form below to do your conversion.
Solution
Step1
Log215315=Log(5315) ÷ Log(21)
Log(5315)= 3.7255032688593
Log(21)=1.3222192947339
Log215315=3.7255032688593 ÷ 1.3222192947339
Ans=2.8176137526484
Step2
Alternatively, the logarithm can be calculated like this.