Primality proof for n = 26711:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=2671.html>2671 is prime.</a>
<br>b^((n-1)/2671)-1 mod n = 1023, which is a unit, inverse 4491.
<p>(2671) divides n-1.
<p>(2671)^2 > n.
<p>n is prime by Pocklington's theorem.