Primality proof for n = 85984049513:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=10748006189.html>10748006189 is prime.</a>
<br>b^((n-1)/10748006189)-1 mod n = 255, which is a unit, inverse 75193894280.
<p>(10748006189) divides n-1.
<p>(10748006189)^2 > n.
<p>n is prime by Pocklington's theorem.