Use the form below to do your conversion.
Solution
Step1
Log215621=Log(5621) ÷ Log(21)
Log(5621)= 3.7498135852929
Log(21)=1.3222192947339
Log215621=3.7498135852929 ÷ 1.3222192947339
Ans=2.8359997469614
Step2
Alternatively, the logarithm can be calculated like this.