Use the form below to do your conversion.
Solution
Step1
Log216857=Log(6857) ÷ Log(21)
Log(6857)= 3.8361341494654
Log(21)=1.3222192947339
Log216857=3.8361341494654 ÷ 1.3222192947339
Ans=2.9012843518044
Step2
Alternatively, the logarithm can be calculated like this.