Question

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solve.......it........... ​

Answer 1

Answer:

we divide by 81 by 3, so that the obtained number becomes a perfect cube. Thus, 81÷3=27=33 81 ÷ 3 = 27 = 3 3 is a perfect cube. Hence the smallest number by which 81 should be divided to make a perfect cube is 3 .

we divide 128 by 2, so that the obtained number becomes a perfect cube. 128÷2=64=23×23=43 128 ÷ 2 = 64 = 2 3 × 2 3 = 4 3 is a perfect cube. Hence the smallest number by which 128 should be divided to make a perfect cube is 2 .

one 5 is left which does not form a triplet. 27= (3 x 3 x 3) is a perfect cube. Hence, the smallest number by which 135 should be divided to make it a perfect cube is 5 .

the smallest number by which 192 should be divided to make a perfect cube is 3 .

the smallest number by which 704 should be divided to make a perfect cube is 11 .