Primality proof for n = 292386187:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=5879.html>5879 is prime.</a>
<br>b^((n-1)/5879)-1 mod n = 130453607, which is a unit, inverse 4206811.
<p><a href=307.html>307 is prime.</a>
<br>b^((n-1)/307)-1 mod n = 114336306, which is a unit, inverse 283400995.
<p>(307 * 5879) divides n-1.
<p>(307 * 5879)^2 > n.
<p>n is prime by Pocklington's theorem.