List questions from elementary-number-theory

Published on 11 Apr 2026 - 18:50

80

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Сonditions for the equality of Greatest Common Divisor of two specified sequences of numbers

Published on 13 Apr 2026 - 20:47

82

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The Density of a Linear Combination

Published on 06 Apr 2026 - 1:39

319

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A possible generalization of Wilson's theorem using the determinant of a matrix

Published on 16 Apr 2026 - 11:49

104

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Uniqueness of an increasing sequence

Published on 15 Apr 2026 - 11:51

452

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Hermite polynomials and primality testing

Published on 13 Apr 2026 - 5:33

1.6k

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Proof that integers (except $1$ and $-1$) don't have an integer multiplicative inverse

Published on 16 Apr 2026 - 0:26

394

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prove that $X^2 \equiv 35 \pmod{100}$ has no solutions

Published on 15 Apr 2026 - 8:45

67

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Prove that if $c\mid a-b$ and $c\mid a+b$ then $c \mid a$

Published on 14 Apr 2026 - 7:53

75

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$p_n$ is never a divisor of $n!$

Published on 16 Apr 2026 - 13:55

143

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Numbers that are different repeated digits in different bases

Published on 13 Apr 2026 - 10:12

260

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show that $ \ a_n \leq x \leq a_n+\frac{1}{b^n} \ $ for any base $b \neq 10 $ holds for any real number in $[0,1]$.

Published on 17 Apr 2026 - 0:40

149

Views

Question on existence of infinite pairs of primes

Published on 16 Apr 2026 - 3:56

320

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Primality criteria for specific classes of generalized Fermat numbers

Published on 13 Apr 2026 - 19:02

4k

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Query on a Solution to the Problem: $\gcd(5a+2,7a+3)=1$ for all integer $a$.

Published on 12 Apr 2026 - 5:29

List Question

Implication of equations

Сonditions for the equality of Greatest Common Divisor of two specified sequences of numbers

The Density of a Linear Combination

A possible generalization of Wilson's theorem using the determinant of a matrix

Uniqueness of an increasing sequence

Hermite polynomials and primality testing

Proof that integers (except $1$ and $-1$) don't have an integer multiplicative inverse

prove that $X^2 \equiv 35 \pmod{100}$ has no solutions

Prove that if $c\mid a-b$ and $c\mid a+b$ then $c \mid a$

$p_n$ is never a divisor of $n!$

Numbers that are different repeated digits in different bases

show that $ \ a_n \leq x \leq a_n+\frac{1}{b^n} \ $ for any base $b \neq 10 $ holds for any real number in $[0,1]$.

Question on existence of infinite pairs of primes

Primality criteria for specific classes of generalized Fermat numbers

Query on a Solution to the Problem: $\gcd(5a+2,7a+3)=1$ for all integer $a$.

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