Primality proof for n = 2412961:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=457.html>457 is prime.</a>
<br>b^((n-1)/457)-1 mod n = 1574612, which is a unit, inverse 1978403.
<p><a href=11.html>11 is prime.</a>
<br>b^((n-1)/11)-1 mod n = 970484, which is a unit, inverse 1436321.
<p>(11 * 457) divides n-1.
<p>(11 * 457)^2 > n.
<p>n is prime by Pocklington's theorem.