GRE Arithmetic: Integers (Part 2 of 4)

This video tutorial covers the multiplication of integers, explaining how the sign of the numbers affects the product. It then delves into factors and multiples, illustrating how to identify them with examples. The tutorial also explains the concepts of the least common multiple (LCM) and greatest common factor (GCF), providing methods to calculate them for given integers. The video concludes with a preview of the next topic, division.

What is the result of multiplying two negative integers?

• It depends on the integers

• Zero

• A negative integer

• A positive integer

Which of the following is a factor of 30?

• 7

• 8

• 9

• 5

What is a multiple of 10?

• 35

• 15

• 25

• 30

Which number is a multiple of every integer?

• 0

• 10

• 1

• 100

What is the Least Common Multiple (LCM) of 30 and 75?

• 75

• 150

• 225

• 300

Which of the following is the Greatest Common Factor (GCF) of 40 and 100?

• 40

• 10

• 20

• 30

What is the GCF of 30 and 75?

• 20

• 15

• 10

• 5