They are 4 6 8 9 and 10
Chat with our AI personalities
Composite numbers less than 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16 and 18.
4, 6, 8, 9, 10.
You may mean: 3 and 5 are prime numbers that add up to the composite number of 8
12 is even, that is 2 divides 12 so 12 cannot be prime.12 is composite. (all even numbers greater than 2 are composite)
4, 6, 8, 9, 10, 12, 14, 15