Use the form below to do your conversion.
Solution
Step1
Log211285=Log(1285) ÷ Log(21)
Log(1285)= 3.1089031276673
Log(21)=1.3222192947339
Log211285=3.1089031276673 ÷ 1.3222192947339
Ans=2.3512764789089
Step2
Alternatively, the logarithm can be calculated like this.