Primality proof for n = 3016241:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=1019.html>1019 is prime.</a>
<br>b^((n-1)/1019)-1 mod n = 1064388, which is a unit, inverse 1785403.
<p><a href=37.html>37 is prime.</a>
<br>b^((n-1)/37)-1 mod n = 2595732, which is a unit, inverse 72503.
<p>(37 * 1019) divides n-1.
<p>(37 * 1019)^2 > n.
<p>n is prime by Pocklington's theorem.