The numbers 19 and 23 are prime.
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15
12
17
23 is the only prime number between 20 and 28.
The sum of all prime numbers between 1 and 11 is 28.
There aren't any.
There are none
28
23 is the only prime number between 20 and 28.
The prime numbers between 13 and 28 are 13 17 19 23 Multiples of 7 in that range include 14, 21 and 28.
The sum of all prime numbers between 1 and 11 is 28.
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
There aren't any.
There are none
There are 5 prime numbers between 8 and 28: 11 13 17 19 23
28
The sum of the five smallest prime numbers is 18.
The even numbers between 18 and 30 are 20, 22, 24, 26, and 28.
How many numbers are in 28
Prime numbers: 11, 13, 17, 19, 23, 29 Composite numbers: 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30