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05 Aug 2019, 21:15
00:00

Difficulty:

65% (hard)

Question Stats:

46% (01:45) correct 54% (01:10) wrong based on 24 sessions

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If a,b, & c are positive integers, is $$\frac{a!b!}{c!}$$ an integer?

(1) $$4 < a < c$$
(2) $$ab = 8$$

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