# 2/1: Group A: Counting strategies;

Group B: Unique factorization in exotic number systems (Prof. Jared Weinstein)

** Group A: ** As homework for next Sunday, please read Sections 1.4-1.5 and 2.1-2.3 (as far as page 37) and do the following exercises:

1.4.4

1.5.1(a)-(d), 1.5.3(a)-(c)

2.2.2, 2.2.3

2.3.1, 2.3.4

Challenge: 1.34, 1.36, 2.28, 2.32

** Group B: ** We will continue learning about quadratic residues and unique factorization for Gaussian integers and some other number systems.