15 is a composite having the factors 1, 3, 5, and 15.
is 2 prime composite or square
A composite and a square.
composite and square
composite and square
It is composite, so it is not prime. It is not a square number.
It is composite.
It is composite.
composite and square
15 is composite.
composite
2 is a prime number and 15 is a composite number.
47 is a prime, the other two are composite.