W is a variable. It could stand for a composite number, but it doesn't have to.
It is a composite number.
It is a composite number.284 is a composite number
94 is a composite number
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.