Primality proof for n = 41597:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=10399.html>10399 is prime.</a>
<br>b^((n-1)/10399)-1 mod n = 15, which is a unit, inverse 19412.
<p>(10399) divides n-1.
<p>(10399)^2 > n.
<p>n is prime by Pocklington's theorem.