Primality proof for n = 56767:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=9461.html>9461 is prime.</a>
<br>b^((n-1)/9461)-1 mod n = 63, which is a unit, inverse 42350.
<p>(9461) divides n-1.
<p>(9461)^2 > n.
<p>n is prime by Pocklington's theorem.