Primality proof for n = 58480511:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=2843.html>2843 is prime.</a>
<br>b^((n-1)/2843)-1 mod n = 20458505, which is a unit, inverse 7163883.
<p><a href=17.html>17 is prime.</a>
<br>b^((n-1)/17)-1 mod n = 41217535, which is a unit, inverse 19680967.
<p>(17 * 2843) divides n-1.
<p>(17 * 2843)^2 > n.
<p>n is prime by Pocklington's theorem.