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Prime number: divisible by itself and 1.

composite number: divisible by more than itself and 1.

Prime: 2 3 7 17 23

composite: 6 9 18 21

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โˆ™ 2009-07-28 15:10:12
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Q: What is the prime and composite number of 2 3 6 7 9 17 18 21 and 23?
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