\(x\) is a positive integer less than \(30,\) which of the following option correctly indicates the number of values of

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\(x\) is a positive integer less than \(30,\) which of the following option correctly indicates the number of values of \(x\) for which \(\dfrac{x^2}{18}\) has \(2\) factors?

A. 0
B. 1
C. 4
D. 5
E. 7

Answer: B

Source: e-GMAT
Source: — Problem Solving |