Primality proof for n = 80629:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=6719.html>6719 is prime.</a>
<br>b^((n-1)/6719)-1 mod n = 4095, which is a unit, inverse 20300.
<p>(6719) divides n-1.
<p>(6719)^2 > n.
<p>n is prime by Pocklington's theorem.