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  QUESTION OF THE DAY  
Question of the day
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Question of the Day (02-Aug-19)

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Let x and y be positive integers such that (xy) and (x + y) are prime. Then which of the following statements is/are true? 
  1. x2 + y2 cannot be prime.
  2. x2 + y2 cannot be even.
  3. x2y2 may be even or odd.

OPTIONS
 
 1)I only
 2)II only
 3)III only
 4)I and III only
 5)I and II only

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