Primality proof for n = 10501:
Take b = 2.
b^(n-1) mod n = 1.
7 is prime.
b^((n-1)/7)-1 mod n = 4099, which is a unit, inverse 1222.
5 is prime.
b^((n-1)/5)-1 mod n = 9779, which is a unit, inverse 1149.
(5^3 * 7) divides n-1.
(5^3 * 7)^2 > n.
n is prime by Pocklington's theorem.