Use the form below to do your conversion.
Solution
Step1
Log216389=Log(6389) ÷ Log(21)
Log(6389)= 3.8054328881321
Log(21)=1.3222192947339
Log216389=3.8054328881321 ÷ 1.3222192947339
Ans=2.8780648590504
Step2
Alternatively, the logarithm can be calculated like this.