11 numbers
2, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
* * * * *
NO! 2 is a prime, not a composite!
4,6,8,9,10,12,14,15,16
The composite numbers between 10 and 20 are 12, 14, 15, 16 and 18.
composite numbers between 11 and 21:12 14 15 16 18
The composite numbers between 11 and 19 are: 12 14 15 16 18 The other numbers, 11, 13, 17, and 19, are all prime.
The composite numbers between 11 and 19 are 12, 14, 15, 16 and 18
There are 18 composite numbers up to and including 30
Composite numbers between 6 and 20 are 8, 9, 10, 12, 14, 15, 16, and 18.
12,14,15,16, and 18
10, 12, 14, 15, 16, 18, 20
12, 14, 15, 16, and 18 are composite numbers 11, 13, 17, and 19 are prime numbers
12, 14, 15, 16.
The composite numbers that are between 1 and 20 inclusive are: 4 6 8 9 10 12 14 15 16 18 20 This is a total of eleven composite numbers equal to 20 and below.