Common Factors and Common Multiples (Form A)

What does GCF stand for?

• Great Common Factor

• Greatest Common Factor

• Grape Car Factor

• Good Common Fact

What does LCM stand for?

• Lazy Counting Multiple

• Last Common Multiple

• Least Common Malfunction

• Least Common Multiple

17 is a PRIME NUMBER because it has just ___ factors: ___ and ___.

• 2, 5, 7

• two, itself, 1

• 2, 15, 2

• 2, 8.5, 2

Tags

CCSS.4.OA.B.4

Select all the PRIME numbers.

• 9

• 2

• 3

• 6

• 7

Tags

CCSS.4.OA.B.4

A COMPOSITE number has ____.

• Exactly two factors

• Fewer than two factors

• More than two factors

• No factors

Tags

CCSS.4.OA.B.4

How do we know that 16 is a COMPOSITE number?

• It is composed of more than just two factors (1x16, 2x8, 4x4).

• It is 1/2 as large as 32.

• It is 3 more than 13.

• It is 6 less than 22.

Tags

CCSS.4.OA.B.4

Choose all COMPOSITE numbers

• 9

• 2

• 3

• 12

• 13

Tags

CCSS.4.OA.B.4

What are all the FACTORS of 24?

• 1, 2, 12, 24

• 1, 2, 8, 24

• 1, 2, 3, 4, 5, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

Tags

CCSS.4.OA.B.4

What is the Greatest Common Factor (GCF) of 3 and 6?

• 1

• 2

• 3

• 6

What is the Greatest Common Factor (GCF) of 12 and 18?

• 6

• 3

• 3

• 9