Primality proof for n = 998970029:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=35677501.html>35677501 is prime.</a>
<br>b^((n-1)/35677501)-1 mod n = 268435455, which is a unit, inverse 70923276.
<p>(35677501) divides n-1.
<p>(35677501)^2 > n.
<p>n is prime by Pocklington's theorem.