Primality proof for n = 17299349:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=20693.html>20693 is prime.</a>
<br>b^((n-1)/20693)-1 mod n = 15338605, which is a unit, inverse 4102175.
<p>(20693) divides n-1.
<p>(20693)^2 > n.
<p>n is prime by Pocklington's theorem.