Use the form below to do your conversion.
Solution
Step1
Log212857=Log(2857) ÷ Log(21)
Log(2857)= 3.4559102403827
Log(21)=1.3222192947339
Log212857=3.4559102403827 ÷ 1.3222192947339
Ans=2.6137194141296
Step2
Alternatively, the logarithm can be calculated like this.