Primality proof for n = 426050702417:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=4098533.html>4098533 is prime.</a>
<br>b^((n-1)/4098533)-1 mod n = 366235129210, which is a unit, inverse 311837701406.
<p>(4098533) divides n-1.
<p>(4098533)^2 > n.
<p>n is prime by Pocklington's theorem.