Primality proof for n = 499067:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=249533.html>249533 is prime.</a>
<br>b^((n-1)/249533)-1 mod n = 3, which is a unit, inverse 166356.
<p>(249533) divides n-1.
<p>(249533)^2 > n.
<p>n is prime by Pocklington's theorem.