Use the form below to do your conversion.
Solution
Step1
Log207121=Log(7121) ÷ Log(20)
Log(7121)= 3.8525409857698
Log(20)=1.301029995664
Log207121=3.8525409857698 ÷ 1.301029995664
Ans=2.9611469363576
Step2
Alternatively, the logarithm can be calculated like this.