Question

find the smallest number by which each of the following number must be multiplied to obtain a perfect Cube i)12178​

Answer 1

Answer:

Hence the smallest number by which 81 should be divided to make a perfect cube is 3 . Here,the prime factors 2 is not present as triples. Hence, 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.

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