Primality proof for n = 5481473:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=101.html>101 is prime.</a>
<br>b^((n-1)/101)-1 mod n = 1821509, which is a unit, inverse 4523687.
<p><a href=53.html>53 is prime.</a>
<br>b^((n-1)/53)-1 mod n = 545983, which is a unit, inverse 2270545.
<p>(53 * 101) divides n-1.
<p>(53 * 101)^2 > n.
<p>n is prime by Pocklington's theorem.