Use the form below to do your conversion.
Solution
Step1
Log21917=Log(917) ÷ Log(21)
Log(917)= 2.96236933567
Log(21)=1.3222192947339
Log21917=2.96236933567 ÷ 1.3222192947339
Ans=2.2404523572364
Step2
Alternatively, the logarithm can be calculated like this.