Primality proof for n = 3469:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=17.html>17 is prime.</a>
<br>b^((n-1)/17)-1 mod n = 1094, which is a unit, inverse 371.
<p>(17^2) divides n-1.
<p>(17^2)^2 > n.
<p>n is prime by Pocklington's theorem.