Use the form below to do your conversion.
Solution
Step1
Log201289=Log(1289) ÷ Log(20)
Log(1289)= 3.1102529173534
Log(20)=1.301029995664
Log201289=3.1102529173534 ÷ 1.301029995664
Ans=2.3906081548612
Step2
Alternatively, the logarithm can be calculated like this.