Use the form below to do your conversion.
Solution
Step1
Log215749=Log(5749) ÷ Log(21)
Log(5749)= 3.759592308646
Log(21)=1.3222192947339
Log215749=3.759592308646 ÷ 1.3222192947339
Ans=2.8433954364601
Step2
Alternatively, the logarithm can be calculated like this.