If \(x\) and \(y\) are positive integers, is \(xy\) a multiple of \(8 ?\)

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If \(x\) and \(y\) are positive integers, is \(xy\) a multiple of \(8 ?\)

(1) The greatest common divisor of \(x\) and \(y\) is \(10.\)
(2) The least common multiple of \(x\) and \(y\) is \(100.\)

Answer: C

Source: GMAT Prep
Source: — Data Sufficiency |