74
The factors of 21 are: 1, 3, 7, 21 The factors of 53 are: 1, 53
53
1,113
37The answer is 37It is: 37
(21+53)/2 = 37
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
37
Catch 21 - 2008 4-53 was released on: USA: 27 October 2010
94
Yes.
21*53 or 2*53 since the power 1 is rarely expressed.