23, 29, 31, 37, 41, 43, 47 and 53.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53 are the prime numbers up to 53.
The prime numbers between 20 and 70 are 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67
The prime numbers from 1 to 53 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, and 53.
The numbers 17, 19, 23, 29, 31, 37, 41, 43, 47, 53 and 59 are prime.
There are 5 prime numbers between 15 and 53, they are 17, 19, 23, 29, and 31.
23 29 31 37 41 43 47 53 . . .
19 23 29 31 37 41 43 47 53 59
31 and 61 are prime numbers. The prime numbers between 31 and 61 are 37, 41, 43, 47, 53, and 59.
They are: 23 29 31 37 41 43 47 53 and 59
17 19 23 29 31 37 41 43 47 53 59 . . .
If you meant to ask what are the prime numbers between 21 and 53 inclusive, then it would be 23, 29, 31, 37, 41, 43, 47, 53