MTH 346
  Number Theory  

Winter 2026 - PSU Campus

Syllabus,   Calendar,   Discussion Group
  Canvas,   Tues 9am Zoom

Section
(topics)
By
(date)
Read
(chapter)
Practice
(discuss)
Homework
(submit)
Part 1

Induction

and

Divisibility

1/5
1/7
1/9
  §1.1 Induction (guide)
  §1.2 Binomial Theorem (guide)
  §2.1 Early Number Theory (guide)
Practice 1
solutions
HW 1
Due 1/14
1/12
1/14
1/16
  §2.2 Division Algorithm
  §2.3 Greatest Common Divisor
  §2.4 Euclid's Algorithm
1/21
1/23
1/30
  §2.5 Diophantus' Equations
  §3.1 Prime Factorization
  §3.2 Eratosthenes' Sieve
Exam One   Weds  
  Jan 28  

Emphasizes HW 1,2,3* (optional)
Part 2

Primes

and

Congruences


 
2/2
2/4
2/6
  §3.3 Goldbach's Conjecture
  §4.2 Basic Congruences
  §4.3 Decimal Representations
2/9
2/11
2/13
  §4.4 Sun-zi's Remainder Theorem
  §5.2 Fermat's Little Theorem
  §5.3 Wilson's Theorem
2/16
2/18
2/20
  §5.4 Fermat's Factorizations
  §6.1 Sigma and Tau Functions
  §7.2 Euler's Phi Function
Exam Two   Weds  
  Feb 25  

Emphasizes HW 4,5,6* (optional)
Part 3

Special

Numbers

2/27
3/2
  §7.3 Euler's Theorem
  §8.1 Orders of Integers (mod n)
3/6
3/11
  §8.2 Primitive Roots
  §11.2 Perfect Numbers
  Exam Three     Mon  
  Mar 16  

9:00-10:50 - Cumulative



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