Primality proof for n = 2998279:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=166571.html>166571 is prime.</a>
<br>b^((n-1)/166571)-1 mod n = 262143, which is a unit, inverse 426873.
<p>(166571) divides n-1.
<p>(166571)^2 > n.
<p>n is prime by Pocklington's theorem.