Primality proof for n = 7144903:
Take b = 2.
b^(n-1) mod n = 1.
132313 is prime. b^((n-1)/132313)-1 mod n = 2875257, which is a unit, inverse 5808523.
(132313) divides n-1.
(132313)^2 > n.
n is prime by Pocklington's theorem.