Theory of numbers: Congruences: Primitive roots
Channel: Richard E Borcherds
Date: 2021-02-02

This lecture is part of an online undergraduate course on the theory of numbers.

We define primitive roots, and show that all primes have primitive roots. 


Correction: At 16:00 two of the square roots of 1 should be (2^k)/2 +1, (2^k)/2-1, not 2^k/2, -2^k/2.

For the other lectures in the course see https://www.youtube.com/playlist?list=PL8yHsr3EFj52Qf7lc3HHvHRdIysxEcj1H