Primality proof for n = 1798367:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=899183.html>899183 is prime.</a>
<br>b^((n-1)/899183)-1 mod n = 3, which is a unit, inverse 599456.
<p>(899183) divides n-1.
<p>(899183)^2 > n.
<p>n is prime by Pocklington's theorem.