Use the form below to do your conversion.
Solution
Step1
Log215687=Log(5687) ÷ Log(21)
Log(5687)= 3.7548832282522
Log(21)=1.3222192947339
Log215687=3.7548832282522 ÷ 1.3222192947339
Ans=2.8398339392013
Step2
Alternatively, the logarithm can be calculated like this.