Use the form below to do your conversion.
Solution
Step1
Log215629=Log(5629) ÷ Log(21)
Log(5629)= 3.7504312486602
Log(21)=1.3222192947339
Log215629=3.7504312486602 ÷ 1.3222192947339
Ans=2.8364668883575
Step2
Alternatively, the logarithm can be calculated like this.