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
(21+53)/2 = 37
Yes.
The number 53 lies between the consecutive integers 52 and 54.
53
53
37The answer is 37It is: 37
(21+53)/2 = 37
37
53
Yes.
53 is a prime number. The other numbers listed are all composites and are divisible by 3.
53
Sonata #21, Opus 53
The distance between 53 and 35 on a number line is the absolute value of 35-53, or 18.
74
4
Between 52 and 73 there are 53, 54, ..., 72 a total of 72 - 53 + 1 = 20 numbers. Including 52 and 73 there are 22 numbers.