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Revision History for A222717 (Bold, blue-underlined text is an addition; faded, red-underlined text is a deletion.)

Showing entries 1-10 | older changes
Primes p whose smallest positive quadratic nonresidue is not a primitive root of p.
(history; published version)
#16 by T. D. Noe at Thu Mar 14 12:06:44 EDT 2013
STATUS

reviewed

approved

#15 by Joerg Arndt at Thu Mar 14 05:24:29 EDT 2013
STATUS

proposed

reviewed

#14 by Jonathan Sondow at Wed Mar 13 21:40:28 EDT 2013
STATUS

editing

proposed

#13 by Jonathan Sondow at Wed Mar 13 21:40:24 EDT 2013
COMMENTS

Supersequence of A047936 = primes whose smallest positive primitive root is not prime. (Proof. If p is not in A222717, then the smallest positive quadratic nonresidue of p is a primitive root g. Since the smallest positive quadratic nonresidue is always a prime, g is prime. But since all primitive roots are quadratic nonresidues, g is the smallest positive primitive root of p. Hence p is not in A047936.)

CROSSREFS
STATUS

approved

editing

#12 by T. D. Noe at Wed Mar 13 11:23:00 EDT 2013
STATUS

editing

approved

#11 by T. D. Noe at Wed Mar 13 11:22:57 EDT 2013
DATA

2, 41, 43, 103, 109, 151, 157, 191, 229, 251, 271, 277, 283, 307, 311, 313, 331, 337, 367, 397, 409, 439, 457, 499, 571, 643, 683, 691, 727, 733, 739, 761, 769, 811, 911, 919, 967, 971, 991, 997, 1013, 1021, 1031, 1051, 1069, 1093, 1151, 1163, 1181, 1289, 1297

STATUS

approved

editing

#10 by T. D. Noe at Wed Mar 13 11:22:33 EDT 2013
STATUS

editing

approved

#9 by T. D. Noe at Wed Mar 13 11:22:27 EDT 2013
DATA

2, 41, 43, 103, 109, 151, 157, 191, 229, 251, 271, 277, 283, 307, 311, 313, 331, 337, 367, 397, 409, 439, 457, 499, 571, 643, 683, 691, 727, 733, 739, 761, 769, 811, 911, 919, 967, 971, 991, 997, 1013, 1021, 1031, 1051, 1069, 1093, 1151, 1163, 1181, 1289, 1297, 1303, 1321, 1399, 1429, 1459, 1471, 1489, 1543, 1559, 1579, 1597, 1613, 1627, 1657, 1699, 1709, 1723, 1753, 1759, 1783, 1789, 1811, 1871, 1873, 1879, 1933

MATHEMATICA

nn = 300; NR = (Table[p = Prime[n]; First[ Select[ Range[p], JacobiSymbol[#, p] != 1 &]], {n, 1, 300nn}]); Select[ Prime[ Range[300nn]], Mod[ NR[[PrimePi[#]]], #] == 0 || MultiplicativeOrder[ NR[[PrimePi[#]]], #] < # - 1 &]

STATUS

approved

editing

#8 by Bruno Berselli at Wed Mar 13 09:35:20 EDT 2013
STATUS

proposed

approved

#7 by Jonathan Sondow at Wed Mar 13 09:21:51 EDT 2013
STATUS

editing

proposed