Primality proof for n = 8049101:
Take b = 2.
b^(n-1) mod n = 1.
80491 is prime. b^((n-1)/80491)-1 mod n = 5411057, which is a unit, inverse 4483723.
(80491) divides n-1.
(80491)^2 > n.
n is prime by Pocklington's theorem.