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135 is not prime. 135 = 3 * 3 * 3 * 5
135 is a composite number because its factors are:

1x135

3x45

5x27

9x15

1, 3, 5, 9, 15, 27, 45, and 135.

*NOTE: All numbers that have a 0 or a 5 in it are composite, except 5 because they will always have a third factor, 5.

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10y ago

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More answers

135 is a composite number. 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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13y ago
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composite

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8y ago
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Q: Is 135 a prime or composite number?
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