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A060520 Primes p that have at least four primitive roots that are not primitive roots mod p^2. 2

%I

%S 653,16631,40487,50033,52517,67631,80803,138107,145253,147197

%N Primes p that have at least four primitive roots that are not primitive roots mod p^2.

%C 40487 is unusual - it has four primitive roots with this property (5, 5^3, 5^5, 4492) and 5 is the least positive primitive root mod 40487 - see A055578.

%e 13425, 18243, 34196, 38462, 39362 and 51787 are primitive roots mod 52517, but not mod 52517^2.

%Y Cf. A060503, A055578, A060518, A060519.

%K more,nonn

%O 1,1

%A _Jud McCranie_, Mar 24 2001

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Last modified January 16 18:17 EST 2022. Contains 350376 sequences. (Running on oeis4.)