How did these below the numbers do it?
19670
\overbrace and \underbrace with square bracket
91929
How are these AES MixColumn multiplication tables calculated?
63076
How to read numbers in English
104359
How do you pronounce numbers written in different bases?
114313
What do the numbers after skills indicate?
91538
What are the rules for factorial manipulation?
54080
How is level determined?
97390
Math - mapping numbers
38100
How do you manipulate this in 2D
83019
how are the math node operations in cycles calculated?
56716
How does he get a perfect swap numerator and denominator.
115699
How exactly does Knuth's Up-Arrow notation work?
125283
What is %0|%0 and how does it work?
39420
binary numbers?
80771
spelling numbers
136918
How to determine the smallest numbers with $n$ factors
137573
How many different numbers can you make with the following digits?