Hi
I am unable to crack it anyone plz through some light.
if p is a prime,p^2+2 is a prime prove that p^3 +2 is a prime.
If p is prime p=6k+1 or p=6k+5;
1)p=6k+1 then $\displaystyle 3|p^2+2>3$ contradiction
2)p=6k+5,3|$\displaystyle p^2+2>3$ so you have a problem with your problem
If p is prime p=6k+1 or p=6k+5;
1)p=6k+1 then $\displaystyle 3|p^2+2>3$ contradiction
2)p=6k+5,3|$\displaystyle p^2+2>3$ so you have a problem with your problem