Primality proof for n = 116989:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=9749.html>9749 is prime.</a>
<br>b^((n-1)/9749)-1 mod n = 4095, which is a unit, inverse 24312.
<p>(9749) divides n-1.
<p>(9749)^2 > n.
<p>n is prime by Pocklington's theorem.