4, 6, 8, 9
2 is the smallest prime number. 9 is the greatest composite number less than 10. The sum of 2 and 9 is 11.
It is composite because it has more than 2 factors
It could be: 2*3 = 6
12
All even numbers greater than 2 are composite.
composite
10 is the only composite factor of 10.
No. 9 is an odd integer less than 10 and you can get it by multiplying 3X3. All odd integers less than 9 are prime. Except one (1). The number 1 is neither prime nor composite.
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.
7
prime number
4