Question

Bryan says that only even numbers are composite

Answer 1

That's not exactly true. Odd numbers can be composite numbers too. For example 15 is a composite number because it has more than two factors.

Answer 2

Bryan is in error, and his statement suffers from a marked
paucity of veracity.  Not only that ... it's also false.

9,  15,  21,  27,  33,  35,  39,  45,  49,  51,  55,  57,  63,  and 69
are just a few of the odd composite numbers.
There are an infinite number of them.

It's true that except for ' 2 ', all other even numbers are composite,
and all other prime numbers are odd.

But that doesn't mean that odd numbers CAN'T be composite.