Primality proof for n = 1302347:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=9719.html>9719 is prime.</a>
<br>b^((n-1)/9719)-1 mod n = 955797, which is a unit, inverse 407495.
<p>(9719) divides n-1.
<p>(9719)^2 > n.
<p>n is prime by Pocklington's theorem.