List questions from irrational-numbers

Published on 11 Apr 2026 - 2:27

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Irrationals with repeated binary digits

Published on 13 Apr 2026 - 2:23

69

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Characteristic function and third moment

Published on 26 Mar 2026 - 23:01

3.6k

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Polynomials with Integer Coefficients and irrational roots

Published on 14 Apr 2026 - 9:12

2.2k

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Proving either $x^2$ or $x^3$ is irrational if $x$ is irrational

Published on 17 Apr 2026 - 6:19

548

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Proving that a series converges to an irrational number.

Published on 13 Apr 2026 - 21:40

324

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If $(n_k)$ is strictly increasing and $\lim_{n \to \infty} n_k^{1/2^k} = \infty$ show that $\sum_{k=1}^{\infty} 1/n_k$ is irrational

Published on 17 Apr 2026 - 4:06

12.8k

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e is irrational

Published on 11 May 2026 - 2:55

94

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Irrational numbers and series

Published on 12 Apr 2026 - 6:55

924

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Cancelling out square roots gives 2?

Published on 13 Apr 2026 - 20:12

168

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why the occurrence of 4,5,6 and 9 in pi differs?

Published on 12 Apr 2026 - 7:09

236

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How to study the irrational numbers with a high school math background?

Published on 13 Apr 2026 - 14:27

1k

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A general method to efficiently calculate the floor of an element of $\mathbb{Q}[\sqrt{2}]$

Published on 10 May 2026 - 20:17

326

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Are there integers $a, b$ such that $\pi^a = e^b$?

Published on 10 May 2026 - 18:23

86

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Logic verification: $x^3$ is irrational, then $x$ is also irrational

Published on 15 Apr 2026 - 8:56

List Question

How to prove that $n \sqrt{17}$ is irrational?

Irrationals with repeated binary digits

Characteristic function and third moment

Polynomials with Integer Coefficients and irrational roots

Proving either $x^2$ or $x^3$ is irrational if $x$ is irrational

Proving that a series converges to an irrational number.

If $(n_k)$ is strictly increasing and $\lim_{n \to \infty} n_k^{1/2^k} = \infty$ show that $\sum_{k=1}^{\infty} 1/n_k$ is irrational

e is irrational

Irrational numbers and series

Cancelling out square roots gives 2?

why the occurrence of 4,5,6 and 9 in pi differs?

How to study the irrational numbers with a high school math background?

A general method to efficiently calculate the floor of an element of $\mathbb{Q}[\sqrt{2}]$

Are there integers $a, b$ such that $\pi^a = e^b$?

Logic verification: $x^3$ is irrational, then $x$ is also irrational

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