Use the form below to do your conversion.
Solution
Step1
Log215479=Log(5479) ÷ Log(21)
Log(5479)= 3.7387013004347
Log(21)=1.3222192947339
Log215479=3.7387013004347 ÷ 1.3222192947339
Ans=2.8275954793014
Step2
Alternatively, the logarithm can be calculated like this.