Swedish Mathematics Olympiad | 2002 Question 4
15:42
International Math Olympiad | 1998 Question 4
24:20
Too hard for the IMO? Too easy?
25:23
these numbers are "best friends"
18:42
New Zealand Mathematical Olympiad 2019 Question 5
26:58
What is a tensor anyway?? (from a mathematician)
12:33
what a nice Diophantine equation.
16:10
Winning the Fields Medal (with James Maynard) - Numberphile
20:14