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15
Math.TechQA.Club
2019-06-30 01:12:17
42
Views
Calculating my improvement via daily compounding
Published on
30 Jun 2019 - 1:12
#recreational-mathematics
80
Views
How often is $N/(2N-\sigma(N))$ a palindrome (in base-$10$) if $N$ is deficient-perfect?
Published on
25 Mar 2026 - 6:06
#number-theory
#recreational-mathematics
#divisor-sum
#arithmetic-functions
#palindrome
133
Views
One knight and one queen on an infinite chess-board (a simple game)
Published on
23 Feb 2026 - 4:41
#recreational-mathematics
#game-theory
#chessboard
#infinite-games
789
Views
Knights and knaves gathering
Published on
02 Jul 2019 - 8:54
#recreational-mathematics
#puzzle
342
Views
How to call complementary sides in tiling shapes
Published on
25 Mar 2026 - 4:37
#geometry
#recreational-mathematics
#puzzle
#tiling
#tessellations
274
Views
Is there more to this relationship with the Fibonacci numbers?
Published on
26 Mar 2026 - 22:53
#sequences-and-series
#soft-question
#recurrence-relations
#recreational-mathematics
#fibonacci-numbers
592
Views
Circle-separable colorings of finite set of points in the plane
Published on
03 Jul 2019 - 14:11
#combinatorics
#euclidean-geometry
#recreational-mathematics
#coloring
110
Views
What does the notation $^{10} C_3$ mean? Or: I am confused by a birthday card...
Published on
26 Mar 2026 - 14:34
#notation
#recreational-mathematics
#natural-numbers
1.1k
Views
two cards are drawn without replacement from an ordinary deck
Published on
05 Jul 2019 - 21:12
#probability
#recreational-mathematics
2.8k
Views
Can we remove any prime number with this strange process?
Published on
26 Mar 2026 - 1:03
#number-theory
#prime-numbers
#recreational-mathematics
#recursive-algorithms
124
Views
Is there a finite number of binary-prime loops?
Published on
08 Jul 2019 - 19:02
#elementary-number-theory
#prime-numbers
#recreational-mathematics
#binary
125
Views
Packing of consecutive cubes
Published on
25 Mar 2026 - 10:58
#recreational-mathematics
#3d
#tiling
#packing-problem
6k
Views
Shortest distance around a pyramid
Published on
11 Jul 2019 - 10:05
#geometry
#recreational-mathematics
86
Views
Grid translation
Published on
11 Jul 2019 - 20:08
#recreational-mathematics
64
Views
An idealized $\infty$-body problem: is an infinite and regular configuration of massive objects stable?
Published on
26 Mar 2026 - 15:17
#physics
#recreational-mathematics
#mathematical-physics
#classical-mechanics
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