List questions from factorial

Published on 06 Oct 2017 - 17:14

135

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How to prove $ (2n)! < {2}^{2n} (n!)^2 $

Published on 08 Oct 2017 - 18:53

692

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Factorial in Modular Arithmetic

Published on 09 Oct 2017 - 13:52

74

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Problem with $0! = 1$

Published on 09 Oct 2017 - 15:03

31

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Explanation for this simplification

Published on 09 Oct 2017 - 19:59

651

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How many (visually) different ways there are to arrange DISCRETEMATHEMATICS

Published on 10 Oct 2017 - 6:36

75

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Summing nearly successive falling factorials

Published on 26 Mar 2026 - 9:49

157

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Prove inequality involving factorials and exponentials

Published on 10 Oct 2017 - 19:04

2.5k

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Closed form of series with factorial-squared denominator?

Published on 04 Apr 2026 - 3:54

201

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How to find highest power of 56

Published on 06 Apr 2026 - 19:31

171

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Semifactorial Identity

Published on 13 Oct 2017 - 4:00

187

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Closed form of double-sum series

Published on 04 Apr 2026 - 3:52

6k

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Prove $(n-2)!+(n-1)!+n!=(n-2)!n^2$ for $n\ge 2$.

Published on 15 Oct 2017 - 12:25

111

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Factorials with large Exponents..

Published on 15 Oct 2017 - 12:55

729

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Proof by induction that $\sum$ $n\choose k $ $= 2^n$

Published on 15 Oct 2017 - 18:37

List Question

Prove $n!≤(\frac{n+1}2)^n$ using AM-GM inequality.

How to prove $ (2n)! < {2}^{2n} (n!)^2 $

Factorial in Modular Arithmetic

Problem with $0! = 1$

Explanation for this simplification

How many (visually) different ways there are to arrange DISCRETEMATHEMATICS

Summing nearly successive falling factorials

Prove inequality involving factorials and exponentials

Closed form of series with factorial-squared denominator?

How to find highest power of 56

Semifactorial Identity

Closed form of double-sum series

Prove $(n-2)!+(n-1)!+n!=(n-2)!n^2$ for $n\ge 2$.

Factorials with large Exponents..

Proof by induction that $\sum$ $n\choose k $ $= 2^n$

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