Use the form below to do your conversion.
Solution
Step1
Log213679=Log(3679) ÷ Log(21)
Log(3679)= 3.5657297878311
Log(21)=1.3222192947339
Log213679=3.5657297878311 ÷ 1.3222192947339
Ans=2.6967763986145
Step2
Alternatively, the logarithm can be calculated like this.