Question

Why does a sum of factorials behave differently from single factorials?

score 125 · Answer 1 · 2023-05-30 15:28:25

125

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Why does a sum of factorials behave differently from single factorials?

Published on 30 May 2023 - 15:28

score 441 · Answer 2 · 2023-06-02 10:52:07

441

Views

Does using pre-computed squares speed up significantly the calculation of factorial $n!$?

Published on 02 Jun 2023 - 10:52

score 118 · Answer 3 · 2026-03-30 10:56:41

118

Views

How to prove that specific value (...5) is infinite in 10-adic

Published on 30 Mar 2026 - 10:56

score 98 · Answer 4 · 2026-03-27 19:32:23

98

Views

Quadratic residues that are also squares themselves

Published on 27 Mar 2026 - 19:32

score 126 · Answer 5 · 2023-06-27 18:12:14

126

Views

Find the sequence of integers that satisfies a recursive condition.

Published on 27 Jun 2023 - 18:12

score 70 · Answer 6 · 2026-03-28 05:21:44

70

Views

Help me (dis)prove a conjecture about square numbers

Published on 28 Mar 2026 - 5:21

score 179 · Answer 7 · 2023-07-04 02:36:18

179

Views

Is $1^{1!}+2^{2!}+3^{3!}+\dots n^{n!}$ a perfect square?

Published on 04 Jul 2023 - 2:36

score 153 · Answer 8 · 2026-03-30 06:27:21

153

Views

Perfect square in the sequence formed by consecutive numbers

Published on 30 Mar 2026 - 6:27

score 97 · Answer 9 · 2023-07-13 17:10:24

97

Views

Evaluation sum and its asymptote $\sum_{s=1}^{N} \sum_{t=1}^{N} \left[{\sqrt{4t-s^2} \in \mathbb{Z}}\right]$

Published on 13 Jul 2023 - 17:10

score 118 · Answer 10 · 2023-07-15 19:57:04

118

Views

How to compute the square root of a polynomial modulo another polynomial?

Published on 15 Jul 2023 - 19:57

score 481 · Answer 11 · 2023-07-16 04:52:04

481

Views

How to estimate a square root of a decimal number?

Published on 16 Jul 2023 - 4:52

score 95 · Answer 12 · 2023-07-18 16:48:21

95

Views

Property $x^y = (x+y)^2$

Published on 18 Jul 2023 - 16:48

score 39 · Answer 13 · 2023-07-19 17:07:06

39

Views

Specialized algorithms for edge cases of binary arithmetic

Published on 19 Jul 2023 - 17:07

score 64 · Answer 14 · 2026-03-28 05:23:18

64

Views

The maximum weight in a weighted sum of Fibonacci squares representation of a positive integer

Published on 28 Mar 2026 - 5:23

score 163 · Answer 15 · 2026-03-30 06:29:53

163

Views

Numbers such that $(\overline{a_1\dots a_n})^2=\overline{x_1\dots x_m}$ and $(\overline{a_n\dots a_1})^2=\overline{x_m\dots x_1}$.

Published on 30 Mar 2026 - 6:29

List Question

Why does a sum of factorials behave differently from single factorials?

Does using pre-computed squares speed up significantly the calculation of factorial $n!$?

How to prove that specific value (...5) is infinite in 10-adic

Quadratic residues that are also squares themselves

Find the sequence of integers that satisfies a recursive condition.

Help me (dis)prove a conjecture about square numbers

Is $1^{1!}+2^{2!}+3^{3!}+\dots n^{n!}$ a perfect square?

Perfect square in the sequence formed by consecutive numbers

Evaluation sum and its asymptote $\sum_{s=1}^{N} \sum_{t=1}^{N} \left[{\sqrt{4t-s^2} \in \mathbb{Z}}\right]$

How to compute the square root of a polynomial modulo another polynomial?

How to estimate a square root of a decimal number?

Property $x^y = (x+y)^2$

Specialized algorithms for edge cases of binary arithmetic

The maximum weight in a weighted sum of Fibonacci squares representation of a positive integer

Numbers such that $(\overline{a_1\dots a_n})^2=\overline{x_1\dots x_m}$ and $(\overline{a_n\dots a_1})^2=\overline{x_m\dots x_1}$.

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