Use the form below to do your conversion.
Solution
Step1
Log2011989=Log(11989) ÷ Log(20)
Log(11989)= 4.078782960197
Log(20)=1.301029995664
Log2011989=4.078782960197 ÷ 1.301029995664
Ans=3.1350414470001
Step2
Alternatively, the logarithm can be calculated like this.