15 is a composite number. It has factors other than 1 and itself; specifically, it can be divided by 1, 3, 5, and 15. Since it has factors other than just 1 and 15, it is classified as composite.
is 15 a prime or composite number
1 answer
1 answer
15 is a composite number. It has factors other than 1 and itself; specifically, it can be divided by 1, 3, 5, and 15. Since it has factors other than just 1 and 15, it is classified as composite.