Question

the smallest number by which 120393 must divided so that the quotient is a perfect cube. a) 7 b) 12 c) 13 d) 3

Answer 1

B. 12 is the right answer

Answer 2

First find the prime factors of 120393

===> 3×3×3×7×7×7×13.

SO the right answer is 13.

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