Use the form below to do your conversion.
Solution
Step1
Log215371=Log(5371) ÷ Log(21)
Log(5371)= 3.7300551523755
Log(21)=1.3222192947339
Log215371=3.7300551523755 ÷ 1.3222192947339
Ans=2.8210563612492
Step2
Alternatively, the logarithm can be calculated like this.