If 'a' and 'b' are natural numbers such that a2-b2 is a prime number then a2-b2 equals (a) a+b (b) a-b (c) ab (d) 1 Share with your friends Share 2 Rishabh Mittal answered this Dear Student, a2-b2 is a prime numberSo, it has only two factors:- 1 and number itselfBut a2-b2=a+b a-bAs a and b are two natural numbers . So their sum can't be 1.So, a-b=1Thus,a2-b2=a+bCorrect option is a . Regards 2 View Full Answer
