Primality proof for n = 734647:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=11131.html>11131 is prime.</a>
<br>b^((n-1)/11131)-1 mod n = 196233, which is a unit, inverse 422044.
<p>(11131) divides n-1.
<p>(11131)^2 > n.
<p>n is prime by Pocklington's theorem.