11x9=99 so it is composite, as it has more than two factors.
composite
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99 (Ninety nine) is composite, because it can be multiplied by 11, and 1.
99 is a composite number because it can be divisible by 1, 3, 9, 11, 33 and 99
No 99 is a composite number it has 99, 1, 11, 9
neither prime or composite
It is prime