Because the other numbers have more than two factors
The prime numbers between 20 and 30 are 23 and 29.
Prime numbers between the given numbers are 23 and 29
23 is the only prime number between 20 and 29.
There are two prime numbers between 20 and 30 which are 23 and 29
They are 23 and 29 which are both prime numbers
The prime numbers between 20 and 30 are 23 and 29.
Prime numbers between the given numbers are 23 and 29
23
23 is the only prime number between 20 and 28.
23 is the only prime number between 20 and 29.
The three prime numbers between 20 and 35 are 23, 29, and 31.
The numbers 23 and 29 are the only prime numbers between 20 and 30
There are two prime numbers between 20 and 30 which are 23 and 29
The prime numbers between 20 and 30 are 23 and 29.
23 26
23 29.
They are 23 and 29 which are both prime numbers