The positive integer \(k\) has exactly two positive prime factors, \(3\) and \(7.\) If \(k\) has a total of \(6\) positive factors, including \(1\) and \(k,\) what is the value of \(k?\)
(1) \(3^2\) is a factor of \(k.\)
(2) \(7^2\) is NOT a factor of \(k.\)
Answer: D
Source: GMAT Prep
The positive integer \(k\) has exactly two positive prime factors, \(3\) and \(7.\) If \(k\) has a total of \(6\) positi
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