A060520 -id:A060520 - cp's OEIS frontend

A060518 Primes p that have exactly two primitive roots that are not primitive roots mod p^2.

367, 863, 907, 1327, 1549, 1579, 1607, 1619, 1697, 2221, 2267, 2551, 2671, 2677, 2693, 2719, 2837, 3209, 3313, 4049, 4373, 4391, 4909, 5261, 5669, 5693, 6007, 6269, 6343, 6547, 6653, 6703, 6857, 6907, 7013, 7559, 7573, 7583, 7669, 7723, 7919

Offset: 1

Jud McCranie, Mar 24 2001

nonn

If x is a primitive root mod prime p then either x is a primitive root mod p^2 or x has order p-1 mod p^2.

			159 and 205 are primitive roots mod 367, but not mod 367^2.

Cf. A060503, A055578, A060519, A060520.

A060519 Primes p that have exactly three primitive roots that are not primitive roots mod p^2.

Original entry on oeis.org

1103, 6569, 13187, 14939, 15313, 16649, 18587, 22091, 22769, 25163, 26189, 26759, 32069, 32647, 33289, 34381, 34939, 37397, 38459, 39047, 42863, 47189, 47699, 54011, 54139, 57173, 57527, 57923, 59539, 61553, 63311, 63347, 63467

Offset: 1

Jud McCranie, Mar 24 2001

nonn

If x is a primitive root mod prime p then either x is a primitive root mod p^2 or x has order p-1 mod p^2.

			284, 793 and 1054 are primitive roots mod 1103, but not mod 1103^2.

Cf. A060503, A055578, A060518, A060520.

cp's OEIS Frontend

A060518 Primes p that have exactly two primitive roots that are not primitive roots mod p^2.

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