14 and 21
8,16
42 and 84
Prime numbers have two factors, composite numbers have more than two.
There are more than ten composite numbers and what they have in common is that they all have more than two factors whereas prime numbers have only two factors which are themselves and one.
Prime numbers have two factors; composite numbers have more than two.
14 and 21
4 and 9
25 and 36
8,16
8 and 16
42 and 84
A common multiple
Prime numbers have two and only two factors. Composite numbers have three or more.
Prime numbers have two factors, composite numbers have more than two.
4 and 9
8 and 16
4 and 9