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Prime Factorisation Method to Find a Cube

Which number ...

Question

Which number should divide $(7^{3} - 8^{2} - 87)$ to make it a perfect cube?

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Solution

The correct option is B.

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Similar questions

Which number should divide $(7^{3} - 8^{2} - 87)$ to make it a perfect cube?
(A) 2
(B) 3
(C) 5
(D) 7

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Q. solution

1) Find the smallest number by which 13720 must be,

I. Multiplied to make it a perfect cube.
II. Divided to make it a perfect cube.

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