Primality proof for n = 10748006189:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=121271.html>121271 is prime.</a>
<br>b^((n-1)/121271)-1 mod n = 2683161203, which is a unit, inverse 3580907642.
<p>(121271) divides n-1.
<p>(121271)^2 > n.
<p>n is prime by Pocklington's theorem.