List questions from quadratic-residues

Published on 13 Jun 2020 - 20:36

300

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Quadratic residue definition

Published on 14 Jun 2020 - 20:10

75

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Using quadratic residues and/or reciprocity to prove relative primality?

Published on 25 Mar 2026 - 19:04

66

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Explain Numerically The Following

Published on 26 Mar 2026 - 12:40

72

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Primes And Quadratic Residues

Published on 05 Jul 2020 - 23:09

235

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Computational complexity of finding a quadratic nonresidue modulo a prime

Published on 25 Mar 2026 - 12:48

62

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Image of $(\Bbb Z/p\Bbb Z)^\times$ under a polynomial map.

Published on 17 Jul 2020 - 1:19

847

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Is it possible that $n^2+1$ has some divisor of the form $4k+3$?

Published on 09 Jul 2016 - 22:01

76

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Proof about prime factors: every prime factor of $4n^2+1$ is congruent to $1 \pmod 4$.

Published on 26 Mar 2026 - 19:01

111

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Question on proof regarding solvability of congruences modulo powers of 2

Published on 26 Mar 2026 - 19:00

231

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Chowla's Construction of prime having least quadratic non-residue $\gg \log p$

Published on 25 Mar 2026 - 11:16

114

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Prove that there exists solution for $x^2-Dy^2 = kp$, $p$ prime, $D$ quadratic residue

Published on 18 Jul 2016 - 16:49

282

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Product of Gauss sums $\tau_p,\tau_q$

Published on 25 Mar 2026 - 7:44

110

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A question about Quadratic residues and modulos

Published on 29 Jul 2016 - 16:45

330

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Restrictions on the [hypothetical] solutions of a ternary quadratic form

Published on 05 Aug 2016 - 21:38

List Question

Little conjecture in elementary number theory

Quadratic residue definition

Using quadratic residues and/or reciprocity to prove relative primality?

Explain Numerically The Following

Primes And Quadratic Residues

Computational complexity of finding a quadratic nonresidue modulo a prime

Image of $(\Bbb Z/p\Bbb Z)^\times$ under a polynomial map.

Is it possible that $n^2+1$ has some divisor of the form $4k+3$?

Proof about prime factors: every prime factor of $4n^2+1$ is congruent to $1 \pmod 4$.

Question on proof regarding solvability of congruences modulo powers of 2

Chowla's Construction of prime having least quadratic non-residue $\gg \log p$

Prove that there exists solution for $x^2-Dy^2 = kp$, $p$ prime, $D$ quadratic residue

Product of Gauss sums $\tau_p,\tau_q$

A question about Quadratic residues and modulos

Restrictions on the [hypothetical] solutions of a ternary quadratic form

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