Use the form below to do your conversion.
Solution
Step1
Log211561=Log(1561) ÷ Log(21)
Log(1561)= 3.1934029030624
Log(21)=1.3222192947339
Log211561=3.1934029030624 ÷ 1.3222192947339
Ans=2.4151840135604
Step2
Alternatively, the logarithm can be calculated like this.