Primality proof for n = 1241450905117:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=29822497.html>29822497 is prime.</a>
<br>b^((n-1)/29822497)-1 mod n = 423251257161, which is a unit, inverse 736755591818.
<p>(29822497) divides n-1.
<p>(29822497)^2 > n.
<p>n is prime by Pocklington's theorem.