Use the form below to do your conversion.
Solution
Step1
Log218471=Log(8471) ÷ Log(21)
Log(8471)= 3.9279346817412
Log(21)=1.3222192947339
Log218471=3.9279346817412 ÷ 1.3222192947339
Ans=2.9707134795152
Step2
Alternatively, the logarithm can be calculated like this.