2,3,5,7,11,13,17,19
11,13,17,19
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
The prime numbers between 4 and 20 are 5, 7, 11, 13, 17 and 19. Their sum is 72.
23,29,31,37,41,and 47
23 and 29
11,13,17 and 19
The prime numbers between 20 and 30 are 23 and 29.
All of them except for 23 and 29 which are prime numbers.
All of them except 23 and 29 which are prime numbers
23 29.
They are 23 and 29.