Name:    Try It Out -- Chapter 1, Lesson 3

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

1.

Select the term to complete the sentence.

The greatest whole number that divides into two or more other whole numbers with no remainder is called the ______.
 a. common factor c. lowest common multiple b. common multiple d. greatest common factor

2.

Select the term to complete the sentence.

The least whole number that has two or more given numbers as factors is called the ______.
 a. common factor c. lowest common multiple b. common multiple d. greatest common factor

3.

Use prime factorization to determine the GCF of 36 and 42.
 a. 1 c. 3 b. 252 d. 6

4.

Use prime factorization to determine the LCM of 36 and 42.
 a. 1512 c. 3 b. 252 d. 6

5.

Determine three common factors of 56 and 80.
 a. 2, 3, 4 b. 2, 4, 6 c. 1, 2, 4

6.

Determine three common multiples of 40 and 48.
 a. 2, 4, 8 c. 240, 480, 720 b. 40, 80, 120 d. 48, 96, 144

7.

Select the LCM of
120 = 2 ´ 2 ´ 2 ´ 3 ´ 5

308 = 2 ´ 2 ´ 7 ´ 11
 a. 9240 b. 36960 c. 4

8.

If two numbers have a GCF of 2 what do you know about the numbers?
 a. both numbers are odd b. both numbers are even c. there is not enough information to know anything about the numbers.

9.

Sam spent \$78 on baseball tickets, while Mitch spent \$65.  If all the tickets were the same price, what was the price of one ticket?
 a. \$5 c. \$13 b. \$3 d. \$6

10.

The local community centre wants to replace the floor in their 51m ´ 135 m meeting room with alternating green and tan squares of flooring.  They want to use the largest possible squares.  What will be the side length of each piece?
 a. 3 m c. 9 m b. 5 m d. 17 m