Listing Factors and Greatest Common Factor

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)

Tags

CCSS.4.OA.B.4

A COMPOSITE number has:-

• Exactly 2 factors

• Less than 2 factors

• More than 2 factors

• No factors

Tags

CCSS.4.OA.B.4

What are the factors of 16 and 24?

• 16-1, 3, 6, 12, 16
  24-1, 2, 4, 6, 24
• 16-1, 2, 4, 8, 16
  24-1, 2, 3, 4, 6, 8, 12, 24
• 16-16, 32, 48, 54
  24-24, 48, 72, 86
• 16- 1, 2, 16
  24-1, 2, 12, 24

Tags

CCSS.6.NS.B.4

Which of the following numbers are factors of 36.

• 1, 3, 5, 12, 
• 1, 2, 3, 4, 6, 9, 12, 36
• 2, 4, 6, 8, 10
• 1, 2, 3, 4, 5, 6

Tags

CCSS.4.OA.B.4

What are the factors of 21?

• 1,3,7,21

• 1,21

• 0,1,7,21

Tags

CCSS.4.OA.B.4

Which lists all the factors of 20?

• 1, 2, 4, 5, 10, 20
• 1, 2, 5, 10, 20
• 1, 4, 5, 20
• 1, 2, 10, 20

Tags

CCSS.4.OA.B.4

Which shows ALL of the factors of 14?

• 1, 14
• 2, 7
• 1, 2, 7, 14
• 1, 28

Tags

CCSS.4.OA.B.4

The greatest common factor of

40 and 16 is _________.

• 1

• 2

• 4

• 8

What is the GCF of 24 and 30?

• 2
• 12
• 6
• 3

Tags

CCSS.4.OA.B.4

Find the GCF of 14 & 22.

• 1
• 2
• 7
• 14

Tags

CCSS.6.NS.B.4