Primality proof for n = 9547:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=43.html>43 is prime.</a>
<br>b^((n-1)/43)-1 mod n = 1467, which is a unit, inverse 7471.
<p><a href=37.html>37 is prime.</a>
<br>b^((n-1)/37)-1 mod n = 3056, which is a unit, inverse 1990.
<p>(37 * 43) divides n-1.
<p>(37 * 43)^2 > n.
<p>n is prime by Pocklington's theorem.