Use the form below to do your conversion.
Solution
Step1
Log21997=Log(997) ÷ Log(21)
Log(997)= 2.9986951583117
Log(21)=1.3222192947339
Log21997=2.9986951583117 ÷ 1.3222192947339
Ans=2.2679257293058
Step2
Alternatively, the logarithm can be calculated like this.