Question

if A and B are two odd prime numbers then show that a² - b² is composite​

Answer 1

Answer:

when you multiply an odd prime number or any number by itself you will always get a composite number. also, the chances of a composite number coming when you subtract the square of two numbers is very high. for eg:

a= 75, b= 7

the square of a = 5625

the square of b= 49

5625- 49= 5576

5576 is a composite number

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