1155 is a composite number because it has more than two factors.
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composite
It is 1 that is neither a prime or a composite number The number 1 is neither prime nor composite.
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.
ANSWER: One is neither prime nor composite.
1 and 0 are neither composite or prime numbers