Use the form below to do your conversion.
Solution
Step1
Log211405=Log(1405) ÷ Log(21)
Log(1405)= 3.1476763242411
Log(21)=1.3222192947339
Log211405=3.1476763242411 ÷ 1.3222192947339
Ans=2.3806008101512
Step2
Alternatively, the logarithm can be calculated like this.