Use the form below to do your conversion.
Solution
Step1
Log215387=Log(5387) ÷ Log(21)
Log(5387)= 3.731346975546
Log(21)=1.3222192947339
Log215387=3.731346975546 ÷ 1.3222192947339
Ans=2.8220333725328
Step2
Alternatively, the logarithm can be calculated like this.