Use the form below to do your conversion.
Solution
Step1
Log211387=Log(1387) ÷ Log(21)
Log(1387)= 3.1420764610733
Log(21)=1.3222192947339
Log211387=3.1420764610733 ÷ 1.3222192947339
Ans=2.3763656101431
Step2
Alternatively, the logarithm can be calculated like this.