Tips & Tricks GIVEN: Value of numbers ‘x’ and ‘y’. CALCULATION: By option checking: Option (1) When x=5,y=3 ⇒ xy+1=16 [Non-prime] Option (2) When x=2,y=6⇒xy+1=13 [Prime] Option (3) When x=3,y=8⇒xy+1=25 [Non-Prime] Option (4) When x=4,y=2⇒xy+1=9 [Non-prime]