%0 Journal Article %T Explicit factorization of $x^n-1\in \mathbb F_q[x]$ %A F. E. Brochero Mart¨ªnez %A C. R. Giraldo Vergara %A L. Batista de Oliveira %J Mathematics %D 2014 %I arXiv %X Let $\mathbb F_q$ be a finite field and $n$ a positive integer. In this article, we prove that, under some conditions on $q$ and $n$, the polynomial $x^n-1$ can be split into irreducible binomials $x^t-a$ and an explicit factorization into irreducible factors is given. Finally, weakening one of our hypothesis, we also obtain factors of the form $x^{2t}-ax^t+b$ and explicit splitting of $x^n-1$ into irreducible factors is given. %U http://arxiv.org/abs/1404.6281v2