Primality proof for n = 41201:
<p>Take b = 3.
<p>b^(n-1) mod n = 1.
<p><a href=103.html>103 is prime.</a>
<br>b^((n-1)/103)-1 mod n = 16838, which is a unit, inverse 17121.
<p><a href=5.html>5 is prime.</a>
<br>b^((n-1)/5)-1 mod n = 18548, which is a unit, inverse 26467.
<p>(5^2 * 103) divides n-1.
<p>(5^2 * 103)^2 > n.
<p>n is prime by Pocklington's theorem.