7th AC/AP: LCM and GCF Quiz

Find the GCF of 64 and 144.
Hint-Remember to use your factor trees to help you.

• 8
• 6
• 16
• 2

Tags

CCSS.6.NS.B.4

Using a Factor Tree, find the prime factorization of 48 in expanded form. 

• 2 x 12 x 12
• 2 x 2 x 2 x 2 x 3 x 3 x 5
• 2 x 2 x 2 x 2 x 3
• 7 x 7 x 7 

GCF of 27 and 70

• 3
• 5
• 7
• 10

Tags

CCSS.6.NS.B.4

Which pair of numbers has a GCF of 5?

• 10 and 25
• 30 and 40
• 45 and 9
• 50 and 25

Tags

CCSS.6.NS.B.4

Which of these is NOT a factor of 20?

• 2
• 4
• 6
• 20

Tags

CCSS.4.OA.B.4

Which of these is NOT a factor of 20?

• 2
• 4
• 6
• 20

Prime numbers have:

• Exactly 2 factors
• 2 pairs of factors
• More than 2 factors
• 1 factor

Tags

CCSS.4.OA.B.4

Composite numbers:

• Are always bigger than prime numbers
• Have more than 2 factors
• Have 2 pairs of factors
• Don't have factors

Tags

CCSS.4.OA.B.4

Is 35 prime or composite?

• prime
• composite

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 4 and 10?

• 4
• 40
• 15
• 20

Tags

CCSS.6.NS.B.4