Primality proof for n = 119194609:
Take b = 2.
b^(n-1) mod n = 1.
2851 is prime.
b^((n-1)/2851)-1 mod n = 82961434, which is a unit, inverse 2762533.
67 is prime.
b^((n-1)/67)-1 mod n = 30977800, which is a unit, inverse 71506111.
(67 * 2851) divides n-1.
(67 * 2851)^2 > n.
n is prime by Pocklington's theorem.