Use the form below to do your conversion.
Solution
Step1
Log215669=Log(5669) ÷ Log(21)
Log(5669)= 3.753506456991
Log(21)=1.3222192947339
Log215669=3.753506456991 ÷ 1.3222192947339
Ans=2.8387926813202
Step2
Alternatively, the logarithm can be calculated like this.