Mathematics
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RavenclawPrefect

College student, big fan of interesting math puzzles. I think up lots of questions, and sometimes ask the more interesting/tricky ones here.

Contact me at "graham's number is big" sans punctuation or spaces at gmail, especially if you share my taste in mathematical problems!

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  • Minneapolis, MN, USA
  • maskedtorah
  • Member for 6 years, 2 months
  • 962 profile views
  • Last seen 6 hours ago

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79 $6!\cdot 7!=10!$. Is there a natural bijection between $S_6\times S_7$ and $S_{10}$? Nov 11 '20
34 Is there (or can there be) a general algorithm to solve Rubik's cubes of any dimension? Nov 28 '20
23 Which convex shapes are the hardest to bind together with a rubber band? Sep 26 '20
21 What is the smallest polyomino that can't surround a $1\times 1$ hole? Jan 15
20 How many “prime” rectangle tilings are there? Feb 1
20 What are the known convex polyhedra with congruent faces? Oct 31 '20
18 Does every 5-celled animal tile the plane? Dec 20 '20
17 How few $(42^\circ,60^\circ,78^\circ)$ triangles can an equilateral triangle be divided into? Jan 12
16 Can an equilateral triangle be dissected into 5 congruent convex pieces? Nov 25 '20
16 When is $\sum_{n=0}^{\infty}\frac{n^k}{3^n}$ an integer? Sep 1 '15
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