Factors and Multiples

A prime number is...

• a number that has only one factor.

• a number that has at least two factors.

• a number that has more than two factors.

• a number that has only two factors.

  (1 and itself)

Composite numbers:

• Are always bigger than prime numbers

• Have more than 2 factors

• Have 2 pairs of factors

• Don't have factors

List the first 5 multiples of 8

• 1, 2, 4, 8

• 8, 16, 25, 32, 40

• 8, 16, 24, 32, 40

• 8, 16, 24, 31, 40

What are the next three multiples of 6- 6, 12, 18, ___ ,___ ,___

• 24, 30, 34

• 24, 36, 42

• 24, 30, 36

• 22, 28, 34

Which number is NOT a multiple of 3?

• 12

• 33

• 14

• 21

Which is true about ALL prime numbers.

• They are all even.

• They are all odd.

• They have exactly two factors.

• They do not have any factors.

Factors are always the same or smaller than the original number. True or False

• False

• True

What number is the only even prime number?

• 0

• 2

• 1

• 3

A COMPOSITE number has:-

• Exactly 2 factors

• Less than 2 factors

• More than 2 factors

• No factors

A class is having a party for 20 students. They are buying cups in packages of 8 and napkins in packages of 12.

What is the least number of packages of cups and napkins they should buy?

• 96 packages of cups and napkins

• 20 packages of cups and napkins

• 3 packages of cups and 2 packages of napkins

• 2 packages of cups and 3 packages of napkins