$${ 7 }^{ 2 } / { 2 }^{ 2 } { 6 }^{ 2 } { 9 }^{ 2 }$$
$35721$
$$\frac{49}{2^{2}}\times 6^{2}\times 9^{2}$$
$$\frac{49}{4}\times 6^{2}\times 9^{2}$$
$$\frac{49}{4}\times 36\times 9^{2}$$
$$\frac{49\times 36}{4}\times 9^{2}$$
$$\frac{1764}{4}\times 9^{2}$$
$$441\times 9^{2}$$
$$441\times 81$$
$$35721$$
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$3^{6}\times 7^{2}$
