Question

How to find a "near LCM" of multiple numbers or common multiples with the least remainder that isn't zero

score 99 · Answer 1 · 2026-04-13 20:41:15

99

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How to find a "near LCM" of multiple numbers or common multiples with the least remainder that isn't zero

Published on 13 Apr 2026 - 20:41

score 367 · Answer 2 · 2026-05-15 10:48:43

367

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105 integers contains a subsequence with sum divisible by 99.

Published on 15 May 2026 - 10:48

score 699 · Answer 3 · 2026-04-16 15:49:59

699

Views

primitive roots modulo 125

Published on 16 Apr 2026 - 15:49

score 303 · Answer 4 · 2026-05-15 03:01:43

303

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Is there any possibilities that the following partial sum of the Dirichlet eta function can be zero?

Published on 15 May 2026 - 3:01

score 472 · Answer 5 · 2026-04-14 22:44:15

472

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Find two odd primes for which $(p-1)!≡-1\mod p^2$ where $p \le13$?

Published on 14 Apr 2026 - 22:44

score 88 · Answer 6 · 2026-04-17 09:45:04

88

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Proposition: Let $m\in \mathbb N$ and $n\in \mathbb Z$. If $m·n\in \mathbb N$, then $n\in \mathbb N$.

Published on 17 Apr 2026 - 9:45

score 136 · Answer 7 · 2026-05-11 09:31:39

136

Views

Number theory: square numbers of a given form

Published on 11 May 2026 - 9:31

score 292 · Answer 8 · 2026-04-16 12:30:23

292

Views

Given prime $p$, find solutions to $x^2 + p y^2 = z^3$

Published on 16 Apr 2026 - 12:30

score 119 · Answer 9 · 2026-04-29 10:22:23

119

Views

Prove that for all integers $a, b, c$ if $a+b^3+c^5=6001$ then at least one of $a,b,c$ is a multiple of three.

Published on 29 Apr 2026 - 10:22

score 584 · Answer 10 · 2026-05-10 18:41:57

584

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Visualizing quadratic residues and their structure

Published on 10 May 2026 - 18:41

score 1.3k · Answer 11 · 2026-04-16 05:27:27

1.3k

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If If $x^2+ax+b+1=0$ has roots which are positive integers, then $(a^2+b^2)$ can be which of the given choices?

Published on 16 Apr 2026 - 5:27

score 110 · Answer 12 · 2026-04-12 01:53:18

110

Views

Puzzle Using Cubes

Published on 12 Apr 2026 - 1:53

score 282 · Answer 13 · 2026-04-16 21:17:06

282

Views

For any integer $n$, prove that LCM $[9n+ 8, 6n+ 5] = 54n^2+ 93n+ 40$.

Published on 16 Apr 2026 - 21:17

score 117 · Answer 14 · 2026-04-16 03:43:34

117

Views

Find x such that $495x \equiv 90 \pmod{6}$ or explain why it does not exist

Published on 16 Apr 2026 - 3:43

score 139 · Answer 15 · 2026-04-16 05:02:10

139

Views

Replacing coefficient of congruence

Published on 16 Apr 2026 - 5:02

List Question

How to find a "near LCM" of multiple numbers or common multiples with the least remainder that isn't zero

105 integers contains a subsequence with sum divisible by 99.

primitive roots modulo 125

Is there any possibilities that the following partial sum of the Dirichlet eta function can be zero?

Find two odd primes for which $(p-1)!≡-1\mod p^2$ where $p \le13$?

Proposition: Let $m\in \mathbb N$ and $n\in \mathbb Z$. If $m·n\in \mathbb N$, then $n\in \mathbb N$.

Number theory: square numbers of a given form

Given prime $p$, find solutions to $x^2 + p y^2 = z^3$

Prove that for all integers $a, b, c$ if $a+b^3+c^5=6001$ then at least one of $a,b,c$ is a multiple of three.

Visualizing quadratic residues and their structure

If If $x^2+ax+b+1=0$ has roots which are positive integers, then $(a^2+b^2)$ can be which of the given choices?

Puzzle Using Cubes

For any integer $n$, prove that LCM $[9n+ 8, 6n+ 5] = 54n^2+ 93n+ 40$.

Find x such that $495x \equiv 90 \pmod{6}$ or explain why it does not exist

Replacing coefficient of congruence

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