Primality proof for n = 2928325597569402103:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=39286345187279.html>39286345187279 is prime.</a>
<br>b^((n-1)/39286345187279)-1 mod n = 2713626407880780759, which is a unit, inverse 1974428338684840993.
<p>(39286345187279) divides n-1.
<p>(39286345187279)^2 > n.
<p>n is prime by Pocklington's theorem.