Primality proof for n = 135694397:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=33923599.html>33923599 is prime.</a>
<br>b^((n-1)/33923599)-1 mod n = 15, which is a unit, inverse 63324052.
<p>(33923599) divides n-1.
<p>(33923599)^2 > n.
<p>n is prime by Pocklington's theorem.