1. By what least number 2744 be multiplied to obtain a number which is a perfect square ?
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By: anil on 05 May 2019 01.41 am
$$2744 = 8 imes 343$$ => $$2744 = 2^3 imes 7^3$$ Powers should be even to make it a perfect square => Least number which should be multiplied = $$2 imes 7 = 14$$
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