Use the form below to do your conversion.
Solution
Step1
Log20661=Log(661) ÷ Log(20)
Log(661)= 2.8202014594856
Log(20)=1.301029995664
Log20661=2.8202014594856 ÷ 1.301029995664
Ans=2.1676682850393
Step2
Alternatively, the logarithm can be calculated like this.