The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs except one. Find that odd number pair.

47 : 2116

The logic followed here Is:

(Ist number)² - 2 × Ist number = second number

47 : 2116 = (47)² - 2 × 47 = 2115 but 2116 is given which is odd

53 : 2703 = (53)² - 2 × 53 = 2703

24 : 528  = (24)² - 2 × 24 = 528

68 : 4488 = (68)² - 2 × 68 = 4488