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11-11-2016
Mathematics

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Express 81 as a product of prime factors

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11-11-2016

81 : 3 = 27
27 : 3 = 9
9 : 3 = 3

So I have divided by 3 three times and I have left 3. Thus the answer will be.
81 = 3 x 3 x 3 x 3

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