This is an extremely poor question.
There are 28 pairs of numbers and, in less than 10 minutes, I could find reasons why 17 pair were different from the other numbers in the set. A bit more time and I am sure I could do the rest.
So here they are:
53 and 72: leave a remainder of 15 when divided by 19.
53 and 77: leave a remainder of 5 when divided by 12.
53 and 82: leave a remainder of 24 when divided by 29.
53 and 87: leave a remainder of 2 when divided by 17.
53 and 95: leave a remainder of 11 when divided by 21.
53 and 97: leave a remainder of 9 when divided by 11.
67 and 95: leave a remainder of 11 when divided by 28.
67 and 87: leave a remainder of 7 when divided by 17.
67 and 97: leave a remainder of 7 when divided by 30.
72 and 82: leave a remainder of 0 when divided by 2 (are even).
72 and 87: leave a remainder of 0 when divided by 3 (multiples of 3).
72 and 95: leave a remainder of 3 when divided by 23.
72 and 97: leave a remainder of 22 when divided by 25.
77 and 95: leave a remainder of 5 when divided by 9.
77 and 97: leave a remainder of 17 when divided by 20.
82 and 95: leave a remainder of 4 when divided by 13.
87 and 95: leave a remainder of 7 when divided by 8.
53, 57, 59, 61, 67, 71, 73
ANSWER: 311First five prime numbers after 50: 53, 59, 61, 67, 71Sum = 53 + 59 + 61 + 67 + 71 = 311
53 59 61 67.
53, 59, 61, 67, 71 and 73 are the prime numbers between 52 and 76.
53 59 61 67.
53, 57, 59, 61, 67, 71, 73
All the prime numbers between 50 and 75 are 53, 59, 61, 67, 71 and 73.
ANSWER: 311First five prime numbers after 50: 53, 59, 61, 67, 71Sum = 53 + 59 + 61 + 67 + 71 = 311
53 59 61 67.
53, 59, 61, 67, 71 and 73 are the prime numbers between 52 and 76.
All the prime numbers 50 through 75 are: 53, 59, 61, 67, 71, and 73.
53% of 67 = 67*53/100 = 35.51
53 61 67 71 and 73
53 59 61 67.
53 59 61 67.
The numbers 53, 59, 61, 67, 71 and 73 are prime.
All of them except for 53, 59, 61 and 67 which are prime numbers