Class Info

  • Date: Tuesday, 10/26/21, 4:05 – 5:45pm
  • Meeting Info: The class will meet on zoom today.

To-Do Before Class

  • Study for Exam #2 (this Thursday)

Topics

  1. Topics in Number Theory #2: GCD, Euclid’s Lemma

Objectives

  • Understand and apply the definition of greatest common divisor to prove theorems.
  • View (be exposed to? understand? follow?) the proof of Euclid’s Lemma.

Activities

Zoom recording

class notes:

Lesson 16 – gcd, Euclids lemmaDownload

Here is a link to a Desmos demonstration on GCD and linear combinations.

To-Do After Class

Homework due Thursday 11/4/21: GCD Problems:
Chapter 4: 27, 28
Chapter 5: 29, 31
(Upload link)

Submitting written work (instructions)

  • Take a picture of each written page of your assignment, and combine the pictures into a single pdf document. How to create a pdf (includes instructions for iOS (iPhone), Android, Mac and Windows)
  • Give the document a name that will help me identify it, for example: “JRodriguez-Class1Homework.pdf”
  • Use this upload link to upload your pdf (this link connects to a Dropbox folder, but you do NOT need to have a Dropbox account to use it).