Use the form below to do your conversion.
Solution
Step1
Log215147=Log(5147) ÷ Log(21)
Log(5147)= 3.7115541682502
Log(21)=1.3222192947339
Log215147=3.7115541682502 ÷ 1.3222192947339
Ans=2.807063989334
Step2
Alternatively, the logarithm can be calculated like this.