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Q: Is the number 1155 a prime number?

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

It is composite

It is composite.

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

1155 = 3 x 5 x 7 x 11

1155 is composite.

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

1155, 3x5x7x11=1155.

1155

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

1155

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.

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