The next prime after 19 is 23
If you want to ask what is the next number of 23, then the answer is 24. If you want to know the next prime number of 23, the answer is 29.
23
23
23
29 - the next available prime number.
7 is a prime number followed by 11 13 17 19 23 ... etc
23 is a prime number
23 is a prime number
23 is a prime number.
20 is the next number greater than 19. The next prime number greater than 19 is 23.
There is an infinite number of prime numbers that are greater than 21. The next prime number after 21 is 23.