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Why is 1 neither prime or composite?

Updated: 4/28/2022
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Wiki User

12y ago

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A Prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

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Wiki User

11y ago
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Wiki User

12y ago

Because 1 has only 1 factor which is 1.

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Q: Why is 1 neither prime or composite?
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