Regular prime
= Regular prime
{wiki=Regular_prime}
In number theory, a prime number \\( p \\) is called a **regular prime** if it does not divide the numerator of the binomial coefficients \\( \\binom\{n\}\{k\} \\) for any integers \\( n \\) and \\( k \\) where both \\( k \\) and \\( n-k \\) are less than \\( p \\). In simpler terms, a regular prime is one that behaves "nicely" with respect to these combinatorial quantities.