Primality proof for n = 84032791:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=1783.html>1783 is prime.</a>
<br>b^((n-1)/1783)-1 mod n = 83694588, which is a unit, inverse 83082399.
<p><a href=1571.html>1571 is prime.</a>
<br>b^((n-1)/1571)-1 mod n = 44616513, which is a unit, inverse 64313901.
<p>(1571 * 1783) divides n-1.
<p>(1571 * 1783)^2 > n.
<p>n is prime by Pocklington's theorem.