Primality proof for n = 5396885861:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=7293089.html>7293089 is prime.</a>
<br>b^((n-1)/7293089)-1 mod n = 1317483561, which is a unit, inverse 3345450373.
<p>(7293089) divides n-1.
<p>(7293089)^2 > n.
<p>n is prime by Pocklington's theorem.