Use the form below to do your conversion.
Solution
Step1
Log207987=Log(7987) ÷ Log(20)
Log(7987)= 3.9023836844325
Log(20)=1.301029995664
Log207987=3.9023836844325 ÷ 1.301029995664
Ans=2.9994571204647
Step2
Alternatively, the logarithm can be calculated like this.