This Card Trick Shouldn't Be Possible
17:49
You Will Never Escape These Sequences
25:12
So Counting is Actually Pretty Hard
10:18
The Perfect NO SETUP Self Working Card Trick You Can't Screw Up!
26:51
New divisibility rule! (30,000 of them)
13:33
How To Calculate Any Square Root
8:42
The GREATEST Card Trick Ever - TUTORIAL!
21:05
Finding the Greatest Factor without Factoring
21:16