Use the form below to do your conversion.
Solution
Step1
Log21361=Log(361) ÷ Log(21)
Log(361)= 2.5575072019057
Log(21)=1.3222192947339
Log21361=2.5575072019057 ÷ 1.3222192947339
Ans=1.9342534268647
Step2
Alternatively, the logarithm can be calculated like this.