Question

3. Find the smallest number by which each of
the following must be multiplied (or divided)
to obtain a perfect cube :
(i) 392
(ii) 675
(iii) 2560
(iv) 8788





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Answer 1

392 = 2 * 2 * 2 * 7 * 7

675= 5 *5*3*3*3

2560= 2*2*2*2*2*2*2*2*2*5

8788= 2*2*13* *13*13

may be 2