Solution
The prime factorization of 72 is given below
[tex]\begin{gathered} 72=8\times9 \\ \\ \text{But we know that} \\ 8=2\times2\times2 \\ 9=3\times3 \\ \\ \text{Thus, } \\ 72=2\times2\times2\times3\times3 \\ \therefore72=2^3\times3^2 \end{gathered}[/tex]
Final Answer
[tex]2^3.3^2[/tex]
