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A152307
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Primes p such that the multiplicative order of 2 modulo p is (p-1)/7.
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2
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1163, 1709, 2003, 3109, 3389, 3739, 5237, 5531, 5867, 7309, 9157, 9829, 10627, 10739, 11117, 11243, 11299, 11411, 11467, 13259, 18803, 20147, 20483, 21323, 21757, 27749, 27763, 29947, 30773, 31123, 31627, 32803, 33461, 33587, 34469
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OFFSET
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1,1
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LINKS
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PROG
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(Magma) [ p: p in PrimesUpTo(34469) | r eq 1 and Order(R!2) eq q where q, r is Quotrem(p, 7) where R is ResidueClassRing(p) ];
(PARI) Vec(select(p->((p!=2) && (znorder(Mod(2, p)) == (p-1)/7)), primes(10000))) \\ Michel Marcus, Feb 09 2015
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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