Use the form below to do your conversion.
Solution
Step1
Log215725=Log(5725) ÷ Log(21)
Log(5725)= 3.7577754910119
Log(21)=1.3222192947339
Log215725=3.7577754910119 ÷ 1.3222192947339
Ans=2.842021369661
Step2
Alternatively, the logarithm can be calculated like this.