Primality proof for n = 165437:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=701.html>701 is prime.</a>
<br>b^((n-1)/701)-1 mod n = 11880, which is a unit, inverse 124593.
<p>(701) divides n-1.
<p>(701)^2 > n.
<p>n is prime by Pocklington's theorem.