Primality proof for n = 105943:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=17657.html>17657 is prime.</a>
<br>b^((n-1)/17657)-1 mod n = 63, which is a unit, inverse 18498.
<p>(17657) divides n-1.
<p>(17657)^2 > n.
<p>n is prime by Pocklington's theorem.