Primality proof for n = 123606883:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=337.html>337 is prime.</a>
<br>b^((n-1)/337)-1 mod n = 51511412, which is a unit, inverse 75742957.
<p><a href=71.html>71 is prime.</a>
<br>b^((n-1)/71)-1 mod n = 16774174, which is a unit, inverse 28589215.
<p>(71 * 337) divides n-1.
<p>(71 * 337)^2 > n.
<p>n is prime by Pocklington's theorem.