2-factor theorem
= 2-factor theorem
{wiki=2-factor_theorem}
The 2-factor theorem, also known as the two-factor theorem, is a principle in number theory and algebra related to the factorization of polynomials or functions. Specifically, it states that if a polynomial can be factored into two non-trivial factors, then the degree of one factor and the degree of the other factor must sum to the degree of the original polynomial.