Infinitely many primes of the form $An+1$ Another Elementary Proof
Commun. Korean Math. Soc. 2004 Vol. 19, No. 2, 205-210 Printed June 1, 2004
Jisang Yoo KAIST
Abstract : According to Diriclet's Theorem, there are infinitely many primes of the form $An+1$ for any fixed positive integer $A$. For this, there already exists a classical simple proof using cyclotomic polynomials. In this paper, we develop another elementary proof of this statement.