Primality proof for n = 119802223514406673:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=2305472951.html>2305472951 is prime.</a>
<br>b^((n-1)/2305472951)-1 mod n = 1639099712776573, which is a unit, inverse 112787762709745973.
<p>(2305472951) divides n-1.
<p>(2305472951)^2 > n.
<p>n is prime by Pocklington's theorem.