Primality proof for n = 1749899:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=6679.html>6679 is prime.</a>
<br>b^((n-1)/6679)-1 mod n = 310304, which is a unit, inverse 707558.
<p>(6679) divides n-1.
<p>(6679)^2 > n.
<p>n is prime by Pocklington's theorem.