Use the form below to do your conversion.
Solution
Step1
Log215729=Log(5729) ÷ Log(21)
Log(5729)= 3.7580788222496
Log(21)=1.3222192947339
Log215729=3.7580788222496 ÷ 1.3222192947339
Ans=2.8422507803487
Step2
Alternatively, the logarithm can be calculated like this.