This is always even??

11:29
Nepal Math Olympiad | 2018 Q 2a.

16:44
The smallest such prime...

16:59
This infinite series is crazy!

20:08
A number theory problem from Morocco!

26:23
Two from Thailand!

23:25
I never understood Tensors intuitively...until now

33:01
The Man Who Almost Broke Math (And Himself...)

1:19:42