Question

What is the best algorithm for finding Goldbug Numbers?

score 425 · Answer 1 · 2026-05-10 15:07:18

425

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What is the best algorithm for finding Goldbug Numbers?

Published on 10 May 2026 - 15:07

score 144 · Answer 2 · 2026-04-09 09:32:02

144

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Upper bound for a ratio of two least common multiples

Published on 09 Apr 2026 - 9:32

score 45 · Answer 3 · 2026-04-11 13:03:55

45

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Can I find the next prime with sufficient small residue efficiently?

Published on 11 Apr 2026 - 13:03

score 109 · Answer 4 · 2026-04-13 18:56:56

109

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$3\mid n,m\Rightarrow 3\mid n^2, jn+km\,$ Multiples closed under scalings and addition.

Published on 13 Apr 2026 - 18:56

score 52 · Answer 5 · 2026-04-13 15:08:48

52

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Is this a sufficient proof for "For all $k \in\Bbb R$, if $k$ is odd, then $4k + 7$ is odd

Published on 13 Apr 2026 - 15:08

score 142 · Answer 6 · 2026-04-13 18:45:13

142

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Modification of Euclids Proof of infinite primes to generate a sequence of distinct primes

Published on 13 Apr 2026 - 18:45

score 212 · Answer 7 · 2026-04-15 08:11:29

212

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Why does the equation $x^4 -17 = 2y^2$ have no rational solution?

Published on 15 Apr 2026 - 8:11

score 41 · Answer 8 · 2026-04-15 23:40:42

41

Views

For $n \in \mathbb{Z}^+$, $x \in \mathbb{Z}$, $k \in \mathbb{Z}$, $F(n)=\min(|n^2-17x|)$ must be $0$ or $2^k$

Published on 15 Apr 2026 - 23:40

score 410 · Answer 9 · 2026-05-10 13:50:02

410

Views

Determine the Legendre symbol of $\left(\frac{14}{p}\right)$

Published on 10 May 2026 - 13:50

score 174 · Answer 10 · 2026-04-14 05:59:29

174

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Number of products of powers of primes less than n

Published on 14 Apr 2026 - 5:59

score 76 · Answer 11 · 2026-04-08 19:13:39

76

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Chinese Remainder Theorem Application Question

Published on 08 Apr 2026 - 19:13

score 1k · Answer 12 · 2026-05-10 14:56:44

1k

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Find all primes $p$ : $x^2 \equiv 13 \pmod p$ has solutions

Published on 10 May 2026 - 14:56

score 256 · Answer 13 · 2026-04-14 20:54:56

256

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Number of ways a natural number can be written as a sum of naturals that are all coprime to it.

Published on 14 Apr 2026 - 20:54

score 536 · Answer 14 · 2026-04-11 23:06:55

536

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Affine cipher with non relatively prime coefficient

Published on 11 Apr 2026 - 23:06

score 64 · Answer 15 · 2026-04-14 01:10:10

64

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Elementary number theory proof difficulty

Published on 14 Apr 2026 - 1:10

List Question

What is the best algorithm for finding Goldbug Numbers?

Upper bound for a ratio of two least common multiples

Can I find the next prime with sufficient small residue efficiently?

$3\mid n,m\Rightarrow 3\mid n^2, jn+km\,$ Multiples closed under scalings and addition.

Is this a sufficient proof for "For all $k \in\Bbb R$, if $k$ is odd, then $4k + 7$ is odd

Modification of Euclids Proof of infinite primes to generate a sequence of distinct primes

Why does the equation $x^4 -17 = 2y^2$ have no rational solution?

For $n \in \mathbb{Z}^+$, $x \in \mathbb{Z}$, $k \in \mathbb{Z}$, $F(n)=\min(|n^2-17x|)$ must be $0$ or $2^k$

Determine the Legendre symbol of $\left(\frac{14}{p}\right)$

Number of products of powers of primes less than n

Chinese Remainder Theorem Application Question

Find all primes $p$ : $x^2 \equiv 13 \pmod p$ has solutions

Number of ways a natural number can be written as a sum of naturals that are all coprime to it.

Affine cipher with non relatively prime coefficient

Elementary number theory proof difficulty

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