Use the form below to do your conversion.
Solution
Step1
Log218917=Log(8917) ÷ Log(21)
Log(8917)= 3.9502187666419
Log(21)=1.3222192947339
Log218917=3.9502187666419 ÷ 1.3222192947339
Ans=2.9875670264189
Step2
Alternatively, the logarithm can be calculated like this.