Correct Answer: Option C

Explanation

2\(^2\) x 3\(^3\) x 5\(^1\) x k;

2\(^2\) x 3\(^2\) x 3 x 5 x k

2\(^2\) x 3\(^2\) x 15 x k

smallest value for k

2\(^2\) x 3\(^2\) x 15 = 2\(^2\) x 3\(^2\) x 15\(^2\)

k = 15

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