$${ 2 }^{ 2 } \times { 2 }^{ 2 } \times { 5 }^{ 2 } \times { 9 }^{ 2 }$$
$32400$
$$2^{4}\times 5^{2}\times 9^{2}$$
$$16\times 5^{2}\times 9^{2}$$
$$16\times 25\times 9^{2}$$
$$400\times 9^{2}$$
$$400\times 81$$
$$32400$$
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$2^{4}\times 3^{4}\times 5^{2}$