Use the form below to do your conversion.
Solution
Step1
Log2113897=Log(13897) ÷ Log(21)
Log(13897)= 4.1429210575156
Log(21)=1.3222192947339
Log2113897=4.1429210575156 ÷ 1.3222192947339
Ans=3.1333085774923
Step2
Alternatively, the logarithm can be calculated like this.