WebPrimitive roots A primitive root is a number so that ap 1 = 1 mod p and for any j < p 1 aj 1 6= 1 mod p. Note that powers of p generate all of Z p. Theorem 1: Z p has a primitive root. … WebThe remainders in the period, which are 3, 2, 6, 4, 5, 1, form a rearrangement of all nonzero remainders modulo 7, implying that 3 is indeed a primitive root modulo 7. This derives …

Primitive Root -- from Wolfram MathWorld

WebThe primitive roots modulo n exist if and only if n = 1, 2, 4, p k, or 2 p k, where p is an odd prime and k is a positive integer. For example, the integer 2 is a primitive root modulo 5 because 2 k ≡ a ( mod 5 ) is satisfied for every integer a that is coprime to 5. WebJul 7, 2024 · If p is an odd prime with primitive root r, then one can have either r or r + p as a primitive root modulo p2. Notice that since r is a primitive root modulo p, then ordpr = ϕ(p) = p − 1. Let m = ordp2r, then rm ≡ 1(mod p2). Thus … memorable outing

Primitive Roots mod p - University of Illinois Chicago

WebAnswer: Suppose p=2^{4n}+1 is prime. Then p>7, and so \gcd(7,p)=1. Moreover, if 3 \mid n, then n=3m and p=16^{3m}+1 is a multiple of 16^m+1. Since p is prime, we conclude that 3 … WebWe can then use the existence of a primitive root modulo p to show that there exist primitive roots modulo powers of p: Proposition (Primitive Roots Modulo p2) If a is a primitive root modulo p for p an odd prime, then a is a primitive root modulo p2 if ap 1 6 1 (mod p2). In the event that ap 1 1 (mod p2), then a + p is a primitive root modulo p2. memorable opening lines in books