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45 is a composite since it factors are 5 and 9.

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14y ago

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45 is a composite number. Its factors are 1, 3, 5, 9, 15, and 45, which makes 45 composite.

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Wiki User

8y ago
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Composite. It is a multiple of 5.

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15y ago
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Q: Is 45 prime or composite
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