## Chapter 1, Lesson 3

**In the multiple-choice questions that follow, list all the correct choices.**

**1-3.A** understand the meaning of factors

**Which of the following number pairs are factors of 6?(a)** 1, 5

**(b)**1, 6

**(c)**2, 3

**(d)**2, 4

**1-3.B** recognize a prime number

**Which of the following factors of 12 are prime numbers?(a)** 2

**(b)**3

**(c)**4

**(d)**6

**1-3.C** understand prime factorization

**Which of the following expressions represents the prime factorization of 24?(a)** 2

^{.}3

**(b)**2

^{. }2

^{. }3

**(c)**2

^{. }2

^{.}2

^{.}3

**(d)**2

^{. }3

^{. }3