Here are the worksheets, listed by date and
title.
Homework
assignments
Back
to number theory main page
13
Jan: Division
15
Jan: The Euclidean Algorithm
22
Jan: The Calendar
24
Jan: Solving Congruences
29
Jan: Solving Congruences: two at a time
(first test)
5
Feb: Unique factorization, or not
10
Feb: How many primes?
12
Feb: Arithmetic functions
14
Feb: Multiplicative functions
19
Feb: More on divisors
21
Feb: The divisor game
24
Feb: The Mobius function
3
Mar: Cyclic groups
7
Mar: Pseudoprimes: composites in disguise
12
Mar: RSA encryption
(second test)
24
Mar: Polynomial congruences
26
Mar: Quadratic congruences
28
Mar: Legendre symbols
31
Mar: Gauss's lemma
4
Apr: Quadratic reciprocity
(third test)
14
Apr: Primitive roots
23
Apr: Sums of two squares
Other handouts: (see the homework page for the homework handouts)
Sample
proof 1 (24 January)
Sample
proof 2 (17 February)
Primality
testing (10 March)
Review
for test 2 (12 March)
Test
2 solutions (14 March)
Review
for test 3 (7 April)
A
little algebra (16 April)
Quaternions
(25 April)
Minkowski's
theorem and sums of four squares (30 April)