Uploaded January 2022 | Updated September 2026, 2 weeks ago

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This lecture is part of my Berkeley math 115 course "Introduction to number theory"
For the other lectures in the course see youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8

We discuss some basic properties of primes and prove the fundamental theorem of arithmetic.


The textbook is "An introduction to the theory of numbers" by Niven, Zuckerman, and Montgomery (5th edition).