Question

Conditions for a modular multiplication graph to contain $k$-cycles

score 92 · Answer 1 · 2026-04-15 21:21:25

92

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Conditions for a modular multiplication graph to contain $k$-cycles

Published on 15 Apr 2026 - 21:21

score 47 · Answer 2 · 2026-04-16 06:21:34

47

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Prove this function is injective and determine its image

Published on 16 Apr 2026 - 6:21

score 59 · Answer 3 · 2026-04-12 14:55:19

59

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System of linear equation based on Sum of the Digits of a number

Published on 12 Apr 2026 - 14:55

score 72 · Answer 4 · 2026-04-17 04:31:32

72

Views

Prove that $\lfloor \sqrt{(p-1)p} \rfloor = p - 1$ and likewise $\lceil \sqrt{(p-1)p} \rceil = p$.

Published on 17 Apr 2026 - 4:31

score 86 · Answer 5 · 2026-04-13 23:03:12

86

Views

P-adic valuation prime lemma

Published on 13 Apr 2026 - 23:03

score 109 · Answer 6 · 2026-04-13 11:28:03

109

Views

Divisibility by 11 proof

Published on 13 Apr 2026 - 11:28

score 103 · Answer 7 · 2026-04-14 00:19:21

103

Views

image of injective function from $Z_{pqr} to Z_{pq}×Z_{qr}×Z_{rp}$

Published on 14 Apr 2026 - 0:19

score 34 · Answer 8 · 2026-04-15 08:34:59

34

Views

Is it necessary to take a general approach in demonstrating that the set $S$ is nonempty

Published on 15 Apr 2026 - 8:34

score 229 · Answer 9 · 2026-04-17 00:39:01

229

Views

Find all positive integer $m$ such $2^{m}+1\mid5^m-1$

Published on 17 Apr 2026 - 0:39

score 904 · Answer 10 · 2026-04-12 12:13:39

904

Views

The prime number matrix sieve

Published on 12 Apr 2026 - 12:13

score 95 · Answer 11 · 2026-04-10 20:41:42

95

Views

Help in solving a problem posed in International Mathematical Olympiad 1983

Published on 10 Apr 2026 - 20:41

score 148 · Answer 12 · 2026-04-16 13:02:32

148

Views

Sum of freely chosen subset of $n$-tuple is divisible by $n$.

Published on 16 Apr 2026 - 13:02

score 110 · Answer 13 · 2026-04-17 04:27:04

110

Views

proof that $\frac{m^a}{2}+\frac{m}{2}-1$ is not a prime number

Published on 17 Apr 2026 - 4:27

score 43 · Answer 14 · 2026-04-15 20:37:27

43

Views

When for given $n$ and $m$ we get $p^n-1=k(p^m-1)$ provided that $k$ is an even number

Published on 15 Apr 2026 - 20:37

score 321 · Answer 15 · 2026-05-10 22:58:36

321

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ELI5: Explanation of why the product of divisors of a natural $n$ is always $n^{\frac{d(n)}{2}}$ where $d(n)$ gives the number of divisors

Published on 10 May 2026 - 22:58

List Question

Conditions for a modular multiplication graph to contain $k$-cycles

Prove this function is injective and determine its image

System of linear equation based on Sum of the Digits of a number

Prove that $\lfloor \sqrt{(p-1)p} \rfloor = p - 1$ and likewise $\lceil \sqrt{(p-1)p} \rceil = p$.

P-adic valuation prime lemma

Divisibility by 11 proof

image of injective function from $Z_{pqr} to Z_{pq}×Z_{qr}×Z_{rp}$

Is it necessary to take a general approach in demonstrating that the set $S$ is nonempty

Find all positive integer $m$ such $2^{m}+1\mid5^m-1$

The prime number matrix sieve

Help in solving a problem posed in International Mathematical Olympiad 1983

Sum of freely chosen subset of $n$-tuple is divisible by $n$.

proof that $\frac{m^a}{2}+\frac{m}{2}-1$ is not a prime number

When for given $n$ and $m$ we get $p^n-1=k(p^m-1)$ provided that $k$ is an even number

ELI5: Explanation of why the product of divisors of a natural $n$ is always $n^{\frac{d(n)}{2}}$ where $d(n)$ gives the number of divisors

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