Euler's Totient Function -- Number Theory 13
29:02
Wilson's Theorem -- Number Theory 14
26:14
Do we even need the real numbers??
7:59
Precalculus Section 7.3A Solving Trig Equations Part 1
17:15
Last 2 digits using Euler's Totient Function
17:33
a surprisingly nice integral
1:03:27
The Langlands Program - Numberphile
18:08
a super nice functional equation
16:24