Use the form below to do your conversion.
Solution
Step1
Log21679=Log(679) ÷ Log(21)
Log(679)= 2.8318697742805
Log(21)=1.3222192947339
Log21679=2.8318697742805 ÷ 1.3222192947339
Ans=2.1417549914444
Step2
Alternatively, the logarithm can be calculated like this.