Use the form below to do your conversion.
Solution
Step1
Log215471=Log(5471) ÷ Log(21)
Log(5471)= 3.7380667147775
Log(21)=1.3222192947339
Log215471=3.7380667147775 ÷ 1.3222192947339
Ans=2.8271155395064
Step2
Alternatively, the logarithm can be calculated like this.