find the smallest number by which 7776must be divided to get a perfect square
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7776 = 2 * 2 * 2 * 2 * 2 * 3 * 3 * 3 * 3 * 3
Clearly one three doesn't have a pair
So it must be divided by three to obtain a perfect square
Clearly one three doesn't have a pair
So it must be divided by three to obtain a perfect square
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