Question

find the prime factorization of the denominator of rational number equivalent to 8.3 9

Answer 1

$$\begin{gathered} 8.39=\frac{839}{100} \\ \mathrm{Denominator}=100=2\times 2\times 5\times 5 \\ \mathrm{Prime}\mathrm{factors}\mathrm{of}\mathrm{denominator}=2\times 2\times 5\times 5. \end{gathered}$$