$${ 147 }^{ 2 } { 155 }^{ 2 } 21$$
$10902280725$
$$21609\times 155^{2}\times 21$$
$$21609\times 24025\times 21$$
$$519156225\times 21$$
$$10902280725$$
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$3^{3}\times 5^{2}\times 7^{5}\times 31^{2}$
