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.