Primitive Root Bias for Twin Primes
Primitive Root Bias for Twin Primes
Numerical evidence suggests that for only about 2% of pairs p, p + 2 of twin primes, p + 2 has more primitive roots than does p. If this occurs, we say that p is exceptional (there are only two exceptional pairs with 5 ⩽ p ⩽ 10, 000). Assuming …