# A CRITERION ON PRIMITIVE ROOTS MODULO p

• PARK, HWASIN (Department of Mathematics, Chonbuk National University) ;
• PARK, JOONGSOO (Department of Mathematics, Woosuk University) ;
• KIM, DAEYEOUL (Department of Mathematics, Chonbuk National University)
• Published : 2000.06.30

#### Abstract

In this paper, we consider a criterion on primitive roots modulo p where p is the prime of the form $p=2^kq+1$, q odd prime. For such p we also consider the least primitive root modulo p. Also, we deal with certain isomorphism classes of elliptic curves over finite fields.