33 is composite, there's no "can be" about it. In any numbering system in which it's possible to write the number 33 it will always be a multiple of 3 and 11, at minimum.
The only composite factor of 33 is 33.
33 is composite.
33 is a composite because it has more then 2 factors
33 is a composite number.
33 is composite, as it is divisible by 3 and 11.
It is composite.
33 and 21 are composite. So is 3321.
33 is composite 37 is prime
33 is a composite number.
33 is a composite number. Its factors are 1, 3, 11, and 33.
33 is a composite number as it can be divisible by 1, 3, 11, 33.
It is composite.