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Q: Is 1155 prime or composite number?

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1155 is not prime. 1155 = 3 * 5 * 7 * 11

It is composite.

1155 is a composite number because it has more than two factors

1155 is a composite number because it has more than two factors.

1155 is composite.

1155 is obviously a multiple of 5 and a multiple of 11, so it is a composite number.

composite

composite, all you do is look at the number at the end then find out if it is prime composite or neither.

1155 ends with 5, which means it is divisible by 5. It is a composite number because it has factors in addition to 1 and itself.

Composite

It is composite.

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. 1155 is composite.

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