29 31 37 41 43 47 53 59 61 67 71 73 79 83 . . .
The numbers 23 and 29 are prime.
23
There is an infinite number of prime numbers that are greater than 21. The next prime number after 21 is 23.
23 and 29 are the two prime numbers greater than 20 but less than 30.
23
23 (Prime) + 29 (Also Prime) = 52
23 and 29
23 29
23 29.
23, 29, 31
23 is the only one.
23, 29, 31