Find the smallest number by which $128$ must be divided to obtain a pefect cube.

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Solution

Only $2$ is left from becoming a perfect square cube.
Therefore, the smallest number by which 128 must be divided to obtain a perfect cube is $2$ .

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Similar questions

Question 3(ii)
Find the smallest number by which each of the following numbers must be divided to obtain a perfect cube:
128

Find the smallest number by which each of the following numbers must be divided to obtain a perfect cube.

(i) 81

(ii) 128

(iii) 135

(iv) 192

(v) 704

128

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