List questions from factorial

Published on 30 Mar 2026 - 5:03

440

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Factorial with names

Published on 04 Apr 2026 - 5:33

97

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Finding $\lim_{n \to \infty} \dfrac{n^n}{(2n)!}$

Published on 29 Jan 2016 - 9:11

1.7k

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Relationship between factorial and derivatives

Published on 29 Jan 2016 - 14:55

50

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$(r-1)^{th}$ derivative of $x^{k+r-1}$

Published on 29 Jan 2016 - 22:27

481

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Is there a way to evaluate the derivative of $x$! without using Gamma function?

Published on 30 Jan 2016 - 11:20

15.8k

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How could we define the factorial of a matrix?

Published on 31 Jan 2016 - 13:56

214

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Factorial ratio sum of finite series

Published on 31 Jan 2016 - 18:52

347

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Looking for a non-combinatorial proof that $a! \cdot b! \mid (a+b)!$

Published on 02 Feb 2016 - 8:35

3k

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Factorial of a matrix: what could be the use of it?

Published on 29 Mar 2026 - 20:21

101

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The method of solving for a factor of $90!$

Published on 02 Feb 2016 - 15:31

357

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How many numbers of $10$ digits that have at least $5$ different digits are there?

Published on 29 Mar 2026 - 14:25

295

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what is the n-k derivative of $x^n$? Also, why is $n!/k! = ...$

Published on 03 Feb 2016 - 21:59

210

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Factorial Summation Definition

Published on 05 Feb 2016 - 18:50

64

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Require assistance proving $n≥2 \Longrightarrow \frac{n!}{n^n} ≤ \frac{1}{2}^{\lfloor \frac{n}{2}\rfloor}$

Published on 06 Feb 2016 - 4:52

List Question

Why is 0 factorial 1?

Factorial with names

Finding $\lim_{n \to \infty} \dfrac{n^n}{(2n)!}$

Relationship between factorial and derivatives

$(r-1)^{th}$ derivative of $x^{k+r-1}$

Is there a way to evaluate the derivative of $x$! without using Gamma function?

How could we define the factorial of a matrix?

Factorial ratio sum of finite series

Looking for a non-combinatorial proof that $a! \cdot b! \mid (a+b)!$

Factorial of a matrix: what could be the use of it?

The method of solving for a factor of $90!$

How many numbers of $10$ digits that have at least $5$ different digits are there?

what is the n-k derivative of $x^n$? Also, why is $n!/k! = ...$

Factorial Summation Definition

Require assistance proving $n≥2 \Longrightarrow \frac{n!}{n^n} ≤ \frac{1}{2}^{\lfloor \frac{n}{2}\rfloor}$

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