28
The numbers 19 and 23 are prime.
The sum of all prime numbers between 1 and 11 is 28.
There aren't any.
There are none
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
28
48
The numbers 19 and 23 are prime.
The prime numbers between 13 and 28 are 13 17 19 23 Multiples of 7 in that range include 14, 21 and 28.
All of them except 23 and 29 which are prime numbers
The sum of all prime numbers between 1 and 11 is 28.
They are: 21 22 24 25 26 27 28 because 23 and 29 are prime numbers
There aren't any.
There are none
There are 5 prime numbers between 8 and 28: 11 13 17 19 23
23