List questions from factorial

Published on 28 Mar 2026 - 20:05

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Proof for 1/k! using n choose k as n approaches infinity and its relation to the gamma function

Published on 23 Mar 2015 - 19:01

86

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integer ordered pair of $(x,y,z)$ in $x!+y! = z!.\;,$ Where $x,y,z\in \mathbb{W}$

Published on 24 Mar 2015 - 7:53

161

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function to approximate $x!$ without factorial

Published on 24 Mar 2015 - 17:50

55

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How to calculate $\lim_{k \to \infty} \frac{(2k)!}{(2k+2)!}$

Published on 25 Mar 2015 - 0:03

1.1k

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Is there a much simpler proof for Euler factorial formula?

Published on 25 Mar 2015 - 16:29

694

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How can $0!=1$ if the definition of factorial is $n!=n\times (n-1)!$

Published on 26 Mar 2015 - 2:41

123

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Wonder how to evaluate this factorial $\left(-\frac{1}{2}\right)!$

Published on 29 Mar 2015 - 12:16

259

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Multiplying three factorials with three binomials in polynomial identity

Published on 29 Mar 2015 - 16:51

1.4k

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Proving two equations containing ceiling and floor function to be equal

Published on 01 Apr 2026 - 4:09

60

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Prove $n!\mid\prod_{k=i}^{i+n-1}k$

Published on 01 Apr 2026 - 12:38

232

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$\lim_{ n\to \infty} \frac{n!}{n^n}$ via L'Hospital's rule

Published on 31 Mar 2015 - 6:32

132

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Is $\frac{n}{3}! = (\frac{1}{3})^n n!$

Published on 31 Mar 2015 - 14:14

98

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Summation with factorial

Published on 31 Mar 2015 - 15:19

155

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Equations involving factorial/Gamma function

Published on 26 Mar 2026 - 0:58

List Question

Combinatorial interpretation of double factorial.

Proof for 1/k! using n choose k as n approaches infinity and its relation to the gamma function

integer ordered pair of $(x,y,z)$ in $x!+y! = z!.\;,$ Where $x,y,z\in \mathbb{W}$

function to approximate $x!$ without factorial

How to calculate $\lim_{k \to \infty} \frac{(2k)!}{(2k+2)!}$

Is there a much simpler proof for Euler factorial formula?

How can $0!=1$ if the definition of factorial is $n!=n\times (n-1)!$

Wonder how to evaluate this factorial $\left(-\frac{1}{2}\right)!$

Multiplying three factorials with three binomials in polynomial identity

Proving two equations containing ceiling and floor function to be equal

Prove $n!\mid\prod_{k=i}^{i+n-1}k$

$\lim_{ n\to \infty} \frac{n!}{n^n}$ via L'Hospital's rule

Is $\frac{n}{3}! = (\frac{1}{3})^n n!$

Summation with factorial

Equations involving factorial/Gamma function

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