All even numbers, except 2, are composite.
composite
23 is prime, 66 is composite.
66-(1,2,3,6,11,22,33,66) Composite
66 is a composite number because it has more than two factors
2, 3 and 11
No. All whole numbers ending in six are composite.
66
2 x 3 x 11
Prime: 13, 23, 31 Composite: 15, 18, 51, 66, 81
Prime factors of 66 are 2 x 3 x 11.
== == Yes. Once we open the field from integers to composite numbers, the gloves come off and lots of things are possible. Example: 1 1/2 = 3 x 1/3. The factor 3 is prime. All composite numbers have prime numbers as factors. Examples: 4 is a composite number of 2 x 2. 38 is a composite number of 2 x 19. 66 is a composite number of 2 x 3 x 11. == ==