Math 312 Section 201


Introduction to Number Theory

2025W Term 2 (January-April 2026)

Time: MWF 11:00-12:00

Place: C124

Office hours: Mondays and Wednesdays from 2pm to 3pm   Math Annex room 1216

SPECIAL OFFICE HOURS WEDNESDAY APRIL 22, 2026 FROM 1:30-2:50PM IN MATH ANNEX ROOM 1216

OUTLINE

The Integers
Integer Representations and Operations
Primes and Greatest Common Divisors
Groups, Rings and Fields
Congruences
Applications of Congruences
Some Special Congruences
Multiplicative Functions
Cryptology
Primitive Roots
The course may cover some additional topics as well.


Please note that the links shown below will not have content at first but will have content added as the term progresses.

Class Notes

You are responsible for all material covered in class. However, these notes will not cover everything done there. Links will not be activated until after the lecture.

January 5  
January 7  
January 9  

January 12  
January 14  
January 16  

January 19  
January 21 (Test 1)  
January 23  

January 26  
January 28  
January 30  

February 02  
February 04 (Test 2)  
February 6  

February 9  
February 11 and February 13  

February 23  
February 25 (Test 3)  
February 27  


March 2  
March 4  
March 6  

March 9  
March 11(Test 4)  
March 13  

March 16  
March 18  
March 20  

March 23  
March 25(Test 5)  
March 27  

March 30  
April 1  
April 8  
April 10  

Tests

Recommended study problems for Test 1. Study Problems  

Wednesday January 21 TEST 1 Solutions 

Recommended study problems for Test 2. Study Problems  

Wednesday February 04 TEST 2 Solutions 

Recommended study problems for Test 3. Study Problems  

Wednesday February 25 TEST 3 Solutions 

Recommended study problems for Test 4. Study Problems  

Wednesday March 11 TEST 4 Solutions 

Recommended study problems for Test 5. Study Problems  

Wednesday March 11 TEST 5 Solutions 

Last day of class is April 10, 2026


Final Exam . April 23, 2026

SPECIAL OFFICE HOURS WEDNESDAY APRIL 22, 2026 FROM 1:30-2:50PM IN MATH ANNEX ROOM 1216


TA TBA


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