The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A042966

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Primes p such that x^7 = 2 has a solution mod p.
(history; published version)

#41 by Charles R Greathouse IV at Thu Sep 08 08:44:55 EDT 2022

PROG

(MAGMA) [p: p in PrimesUpTo(400) | exists{x: x in ResidueClassRing(p) | x^7 eq 2}]; // Bruno Berselli, Sep 12 2012

Discussion

Thu Sep 08

08:44

OEIS Server: https://oeis.org/edit/global/2944

#40 by Joerg Arndt at Fri Jan 07 02:34:51 EST 2022

STATUS

reviewed

#39 by Michel Marcus at Fri Jan 07 01:20:22 EST 2022

STATUS

proposed

#38 by Jon E. Schoenfield at Fri Jan 07 00:54:06 EST 2022

STATUS

editing

#37 by Jon E. Schoenfield at Fri Jan 07 00:54:00 EST 2022

COMMENTS

a(98) = 631 is the first such prime that is congruent to 1 mod 7. - Georg Fischer, Jan 06 2022

LINKS

T. D. Noe, <a href="/A042966/b042966.txt">Table of n, a(n) for n=1..1000</a>

AUTHOR

STATUS

approved

#36 by Michael De Vlieger at Thu Jan 06 10:49:12 EST 2022

STATUS

reviewed

#35 by Joerg Arndt at Thu Jan 06 10:20:47 EST 2022

STATUS

proposed

#34 by Georg Fischer at Thu Jan 06 09:45:41 EST 2022

STATUS

editing

#33 by Georg Fischer at Thu Jan 06 09:45:03 EST 2022

COMMENTS

631 == 1 mod 7 is the first such prime that is not congruent to {0, 2, 3, 4, 5, 6} mod 7. - Georg Fischer, Jan 06 2022

STATUS

proposed

#32 by Michel Marcus at Thu Jan 06 07:11:57 EST 2022

STATUS

editing

Discussion

Thu Jan 06

09:36

Joerg Arndt: "not congruent to {0, 2, 3, 4, 5, 6}" --> "congruent to 1 mod 7" ?