Primality proof for n = 10303:
<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 = 8577, which is a unit, inverse 4471.
<p><a href=17.html>17 is prime.</a>
<br>b^((n-1)/17)-1 mod n = 4533, which is a unit, inverse 9012.
<p>(17 * 101) divides n-1.
<p>(17 * 101)^2 > n.
<p>n is prime by Pocklington's theorem.