Primality proof for n = 1261073269:
<p>Take b = 2.
<p>b^(n-1) mod n = 1.
<p><a href=29611.html>29611 is prime.</a>
<br>b^((n-1)/29611)-1 mod n = 748474921, which is a unit, inverse 150806420.
<p><a href=13.html>13 is prime.</a>
<br>b^((n-1)/13)-1 mod n = 178262577, which is a unit, inverse 931669981.
<p>(13^2 * 29611) divides n-1.
<p>(13^2 * 29611)^2 > n.
<p>n is prime by Pocklington's theorem.