Use the form below to do your conversion.
Solution
Step1
Log213889=Log(3889) ÷ Log(21)
Log(3889)= 3.5898379431475
Log(21)=1.3222192947339
Log213889=3.5898379431475 ÷ 1.3222192947339
Ans=2.7150094976264
Step2
Alternatively, the logarithm can be calculated like this.