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Why doesn't 15 a prime number?

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Anonymous

∙ 11y ago
Updated: 10/17/2024

It has more than two factors.

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Wiki User

∙ 11y ago
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What is the odd prime number less than 15 that doesnt repeat?

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15 is a factor of 45, but it is not a prime number.


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2 is a prime number and 15 is a composite number.


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3 and 5 are Prime Factors of 15 (3x5=15).


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3 x 5 = 15, so 15 is not a prime number.


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Why isn't 15 a prime number?

A number is prime if it has only 1 and itself as factors. For example, 7 is a prime number because it has only 1 and 7 as factors. 15 isn't a prime number because it has 1, 3, 5, and 15 as factors.

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