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Ok, so "72" is a composite number, because it has factory. See, the factors of "72" are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and then of course itself: 72. A Prime number's factors are only 1 and itself, so for example 7. A factor is any whole number that, when multiplied by any one other whole number, is that number that the original number was and is a factor of. Hope this helps!

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Osbaldo Fadel

Lvl 10
3y ago

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If it has any other factors besides 1 and 72, then it's composite. Let's see . . .

The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72.

It sure doesn't look like a prime.

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Wiki User

14y ago
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composite

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Wiki User

8y ago
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Q: Is 72 a prime or composite?
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