A positive integer is said to be a prime number if it is not divisible by any positive integer other than itself and 1. Let $$p$$ be a prime number greater than 5. Then $$(p^2-1)$$ is
Let the Prime number be 6n+1.
So $$(p^2 - 1)$$ = 6n(6n+2) = 12n(3n+1)
For any value of n , n(3n+1) will have a factor of 2
Hence given equation will be always be divisible by 24
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