Which is a composite number 16 or 19?

Answer 1

A number which has more than two factors is called a composite number.

Factors of 16 are 1, 2, 4, 8 and 16. As we can see that 16 has more than two factors so, it is a composite number.

Whereas 19 is prime because it has only two factors: 1 and 19.

Answer 2

16