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A composite number is a number that has smaller factors (excluding 1). A Prime number is one that doesn't (1 is not considered prime nor composite, because of its special role in multiplication).

Since 15 is divisible by 3, it is composite.

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composite

Q: Is 15 a prime composite or neither?

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neither prime or composite

31 and 61 are prime, the rest composite.

15 is a composite number because it has more than two factors. Its factors are 1, 3, 5, and 15.15 is a composite number as it is divisible by 1, 3, 5 and 15.composite. 3*5=1515 is a composite number because it has more than 2 factors

2/5 are prime, 8/15 are composite (and 1/15 is neither).

0 is neither a prime nor a composite number.

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composite

neither prime or composite

31 and 61 are prime, the rest composite.

15 is a composite number because it has more than two factors. Its factors are 1, 3, 5, and 15.15 is a composite number as it is divisible by 1, 3, 5 and 15.composite. 3*5=1515 is a composite number because it has more than 2 factors

It is 1 that is neither a prime or a composite number The number 1 is neither prime nor composite.

ANSWER: One is neither prime nor composite.

1 and 0 are neither composite or prime numbers

The number 1 is neither a prime nor a composite number.

0 and 1 are neither prime nor composite.

2/5 are prime, 8/15 are composite (and 1/15 is neither).

0 is neither a prime nor a composite number.

It is composite.