Use the form below to do your conversion.
Solution
Step1
Log21401=Log(401) ÷ Log(21)
Log(401)= 2.6031443726202
Log(21)=1.3222192947339
Log21401=2.6031443726202 ÷ 1.3222192947339
Ans=1.9687690105476
Step2
Alternatively, the logarithm can be calculated like this.