12 14 15 16 18 20
11 composite 8 prime 1 neither
Between 11 and 21: 12, 14, 15, 16, 18 and 20.
12, 14, 15, 16 and 18.
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
The composite numbers between 10 and 20 are 12, 14, 15, 16 and 18.
There are 3 composite numbers between 20 and 25. They are 21, 22, and 24.
The composite numbers between 20 and 25 are 21, 22, and 24. 23 is the only prime number between 20 and 25.
The composite numbers between 20 and 30 are: 20 21 22 24 25 26 27 28 30
12, 14, 15, 16, 18 and 20
Composite numbers between 6 and 20 are 8, 9, 10, 12, 14, 15, 16, and 18.
The composite numbers between 20 and 30 are 21, 22, 24, 25, 26, 27, and 28.