Question

How do I find the smallest positive integer that can be written as a linear combination of 2191 and 1351?

score 181 · Answer 1 · 2023-03-23 18:12:55

181

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How do I find the smallest positive integer that can be written as a linear combination of 2191 and 1351?

Published on 23 Mar 2023 - 18:12

score 183 · Answer 2 · 2023-03-24 07:23:05

183

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Prove or disprove that $\gcd\left(n!+1,f\left(n\right)\right)=1$

Published on 24 Mar 2023 - 7:23

score 89 · Answer 3 · 2023-03-24 20:25:10

89

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Given the prime factorization of a number c, how many combinations of numbers (a,b) are there such that LCM(a,b)=c?

Published on 24 Mar 2023 - 20:25

score 58 · Answer 4 · 2023-03-28 17:24:10

58

Views

If $\gcd(a,b)=d_1$ and $\gcd(b,c)=d_2$, what can we say about $\gcd(a,c)$

Published on 28 Mar 2023 - 17:24

score 44 · Answer 5 · 2026-04-01 08:06:44

44

Views

If two fractions can't be canceled further and their denominators are coprime then also their sum can't be canceled further

Published on 01 Apr 2026 - 8:06

score 216 · Answer 6 · 2023-04-01 13:55:43

216

Views

prove that $x^{20}+(1-x)^{20}-20$ is square free

Published on 01 Apr 2023 - 13:55

score 80 · Answer 7 · 2023-04-03 23:24:39

80

Views

Find the $\gcd(2k-1,9k+4)$

Published on 03 Apr 2023 - 23:24

score 141 · Answer 8 · 2026-03-26 13:41:44

141

Views

Proving $n \mid \sigma(n^2)$

Published on 26 Mar 2026 - 13:41

score 98 · Answer 9 · 2026-03-30 06:22:05

98

Views

Multiplicative lattice with $(a \land b)\ast(a\lor b)=a \ast b$

Published on 30 Mar 2026 - 6:22

score 103 · Answer 10 · 2023-04-16 12:13:16

103

Views

Prove that $\gcd(4k, 2k+1)=1$ for $k\in\mathbb Z$

Published on 16 Apr 2023 - 12:13

score 59 · Answer 11 · 2023-04-18 15:49:02

59

Views

gcd of numbers from $ \mathbb{Z}[\sqrt{5}] $

Published on 18 Apr 2023 - 15:49

score 23 · Answer 12 · 2023-04-21 05:01:28

23

Views

Algorithm to calculate the LCM of 2 numbers by going 1 number at a time

Published on 21 Apr 2023 - 5:01

score 57 · Answer 13 · 2023-04-21 22:59:36

57

Views

Do pairs of numbers that have common factors over 1 have more common multiples than pairs that don't?

Published on 21 Apr 2023 - 22:59

score 39 · Answer 14 · 2026-03-31 14:29:10

How to prove that add one of the deleted rows and columns to the matrix will not increase the polynomial degree of GCD of largest minors more than 1?

score 87 · Answer 15 · 2023-04-23 03:27:16

87

Views

Is is possible to get $\gcd(b, c)$ from $\gcd(a, b, c)$?

Published on 23 Apr 2023 - 3:27

List Question

How do I find the smallest positive integer that can be written as a linear combination of 2191 and 1351?

Prove or disprove that $\gcd\left(n!+1,f\left(n\right)\right)=1$

Given the prime factorization of a number c, how many combinations of numbers (a,b) are there such that LCM(a,b)=c?

If $\gcd(a,b)=d_1$ and $\gcd(b,c)=d_2$, what can we say about $\gcd(a,c)$

If two fractions can't be canceled further and their denominators are coprime then also their sum can't be canceled further

prove that $x^{20}+(1-x)^{20}-20$ is square free

Find the $\gcd(2k-1,9k+4)$

Proving $n \mid \sigma(n^2)$

Multiplicative lattice with $(a \land b)\ast(a\lor b)=a \ast b$

Prove that $\gcd(4k, 2k+1)=1$ for $k\in\mathbb Z$

gcd of numbers from $ \mathbb{Z}[\sqrt{5}] $

Algorithm to calculate the LCM of 2 numbers by going 1 number at a time

Do pairs of numbers that have common factors over 1 have more common multiples than pairs that don't?

How to prove that add one of the deleted rows and columns to the matrix will not increase the polynomial degree of GCD of largest minors more than 1?

Is is possible to get $\gcd(b, c)$ from $\gcd(a, b, c)$?

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