Use the form below to do your conversion.
Solution
Step1
Log219713=Log(9713) ÷ Log(21)
Log(9713)= 3.9873533887358
Log(21)=1.3222192947339
Log219713=3.9873533887358 ÷ 1.3222192947339
Ans=3.0156520969074
Step2
Alternatively, the logarithm can be calculated like this.