List questions from integers

Published on 21 Oct 2018 - 19:03

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Given a finite set of primes $(q_i)$ is the set of all primes reachable by common differences finite?

Published on 22 Oct 2018 - 23:13

213

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Quadratic integer polynomial is always composite?

Published on 26 Mar 2026 - 2:52

70

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What will be the value of $ab$?

Published on 26 Oct 2018 - 3:12

273

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Explain these integer solutions

Published on 26 Oct 2018 - 19:05

1.2k

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Cardinality of all non-increasing functions from $\mathbb{N}$ to $\mathbb{N}$

Published on 27 Oct 2018 - 13:04

61

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Since $\Bbb{Z}/(p)$ is a ring and $(\Bbb{Z}/p)^{\times} \simeq \Bbb{Z}/(p-1)$ which is also a ring, how do they relate?

Published on 28 Oct 2018 - 1:44

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What is the smallest integer greater than 1 such that $\frac12$ of it is a perfect square and $\frac15$ of it is a perfect fifth power?

Published on 25 Mar 2026 - 7:46

959

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How many 3 digit integers...?

Published on 29 Oct 2018 - 16:32

169

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No polynomial with integer coefficients satisfies the conditions

Published on 30 Oct 2018 - 13:42

89

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Integer, when reversing its digits, it doubles

Published on 30 Oct 2018 - 16:45

81

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Integer Factoring - Check if $N=a^{b}$ for some integers $a$ and $b$

Published on 30 Oct 2018 - 20:21

98

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How to evaluate the following sum if $n$ is an even number?

Published on 26 Mar 2026 - 1:11

40

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Can a finite subset of integers ever be a maximal anti-ideal?

Published on 01 Nov 2018 - 14:53

89

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For any $a \in \Bbb{Z}$, can we always find two prime numbers $p, q$, such that $p - q \in (a)$?

Published on 25 Mar 2026 - 6:13

List Question

$y \leq x \leq y \implies x = y$

Given a finite set of primes $(q_i)$ is the set of all primes reachable by common differences finite?

Quadratic integer polynomial is always composite?

What will be the value of $ab$?

Explain these integer solutions

Cardinality of all non-increasing functions from $\mathbb{N}$ to $\mathbb{N}$

Since $\Bbb{Z}/(p)$ is a ring and $(\Bbb{Z}/p)^{\times} \simeq \Bbb{Z}/(p-1)$ which is also a ring, how do they relate?

What is the smallest integer greater than 1 such that $\frac12$ of it is a perfect square and $\frac15$ of it is a perfect fifth power?

How many 3 digit integers...?

No polynomial with integer coefficients satisfies the conditions

Integer, when reversing its digits, it doubles

Integer Factoring - Check if $N=a^{b}$ for some integers $a$ and $b$

How to evaluate the following sum if $n$ is an even number?

Can a finite subset of integers ever be a maximal anti-ideal?

For any $a \in \Bbb{Z}$, can we always find two prime numbers $p, q$, such that $p - q \in (a)$?

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