Factors and Prime/Composite

Which number is Prime?

• 12

• 15

• 4

• 3

Tags

CCSS.4.OA.B.4

Is 3 a prime number?

• Yes, because it has more than one factor pair.

• Yes, because it only has one factor pair.

• No, because it has more than one factor pair.

• No, because it has only one factor pair.

Tags

CCSS.4.OA.B.4

39

• prime

• composite

Tags

CCSS.4.OA.B.4

37

• prime

• composite

Tags

CCSS.4.OA.B.4

9

• prime

• composite

Tags

CCSS.4.OA.B.4

Is 6 a factor of 24?

• Yes

• No

Tags

CCSS.4.OA.B.4

What is a factor?

• Factors are the numbers you multiply to get another number. For instance, factors of 15 are 3 and 5, because 3×5 = 15

• A factor is a number written in word form

• Factors tell you facts about all the numbers in the world

Tags

CCSS.4.OA.B.4

Which number is a factor of 10?

• 3

• 5

• 4

• 8

Tags

CCSS.4.OA.B.4

Which number is NOT a factor of 10?

• 1

• 2

• 3

• 5

Tags

CCSS.4.OA.B.4

Is 3 a factor of 12?

• yes

• no

Tags

CCSS.4.OA.B.4