List questions from factorial

Published on 31 Aug 2014 - 14:44

150

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Coefficients of a polynomial representation of factorials

Published on 31 Aug 2014 - 23:24

1.2k

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Telescoping series of form $\sum (n+1)\cdots(n+k)$

Published on 01 Sep 2014 - 10:03

4k

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Using induction to prove that $\sum_{r=1}^n r\cdot r! =(n+1)! -1$

Published on 02 Sep 2014 - 19:20

184

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Factorial Equivalencies Calculus

Published on 03 Sep 2014 - 0:26

549

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Another question about ratios of Pochhammer symbols

Published on 26 Mar 2026 - 1:10

330

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Challenge: How to prove this reduction identity for factorials of even numbers?

Published on 04 Sep 2014 - 10:02

386

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Finding every triplet $(n,a,b)$ such that $n!=2^a-2^b$

Published on 04 Sep 2014 - 10:07

259

Views

Factorial as a sum. Insight appreciated

Published on 05 Sep 2014 - 17:29

941

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Complexity of computing $N!$

Published on 26 Mar 2026 - 19:20

63

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Factorial Summation Problem

Published on 08 Sep 2014 - 0:01

4.2k

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How to reduce large combinations?

Published on 08 Sep 2014 - 3:09

278

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How do I solve this? $\lim_{n\to\infty} \frac{2^n}{n!}$?

Published on 08 Sep 2014 - 11:47

3.4k

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Determining whether a number is a 'factorial number'

Published on 08 Sep 2014 - 14:41

154

Views

Proving that if $n>2$ then $n!>n^{n/2}$ using induction.

Published on 08 Sep 2014 - 17:53

List Question

Proving that $(xy)!/y!^x$ is an integer

Coefficients of a polynomial representation of factorials

Telescoping series of form $\sum (n+1)\cdots(n+k)$

Using induction to prove that $\sum_{r=1}^n r\cdot r! =(n+1)! -1$

Factorial Equivalencies Calculus

Another question about ratios of Pochhammer symbols

Challenge: How to prove this reduction identity for factorials of even numbers?

Finding every triplet $(n,a,b)$ such that $n!=2^a-2^b$

Factorial as a sum. Insight appreciated

Complexity of computing $N!$

Factorial Summation Problem

How to reduce large combinations?

How do I solve this? $\lim_{n\to\infty} \frac{2^n}{n!}$?

Determining whether a number is a 'factorial number'

Proving that if $n>2$ then $n!>n^{n/2}$ using induction.

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