$${ 7 }^{ 2 } / { 1 }^{ 2 } { 7 }^{ 2 } { 9 }^{ 2 }$$
$194481$
$$\frac{49}{1^{2}}\times 7^{2}\times 9^{2}$$
$$\frac{49}{1}\times 7^{2}\times 9^{2}$$
$$49\times 7^{2}\times 9^{2}$$
$$49\times 49\times 9^{2}$$
$$2401\times 9^{2}$$
$$2401\times 81$$
$$194481$$
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$3^{4}\times 7^{4}$