GCF and LCM Quiz

What is the least common multiple (LCM) of 15 and 2?

• 30
• 2
• 45
• 152

Tags

CCSS.6.NS.B.4

Fill in the missing multiple.
3:  3, 6, 9, ___, 15, 18, 21

• 10
• 11
• 12
• 13

Tags

CCSS.4.OA.C.5

What is the GCF of 24 and 40?

• 1
• 2
• 4
• 8

Tags

CCSS.6.NS.B.4

Find the Greatest Common Factor (GCF) of 12 & 27

• 1

• 3

• 9

• 12

Tags

CCSS.6.NS.B.4

Oscar needs to ship 14 rocks CDs, 12 classical CDs, and 8 pop CDs. He can pack only one type of CD in each box and he must pack the same number of CDs in each box. What is the greatest number of CDs Oscar can pack in each box?

• 7

• 1

• 8

• 2

Tags

CCSS.6.NS.B.4

Prime numbers have:

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

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

Which is a NOT a factor of 9?

• 0
• 1
• 3
• 9

Is 5 prime or composite? 

• Prime
• Composite

Pencils come in packages of 10. Erasers come in packages of 12. Dean wants to purchase the smallest number of pencils and erasers so that he will have exactly 1 eraser per pencil. How many packages of pencils and erasers should Dean buy?

• 5 packages of pencils and 4 packages of erasers.

• 4 packages of pencils and 3 packages of erasers.

• 6 packages of pencils and 5 packages of erasers.

• 12 packages of pencils and 10 packages of erasers.

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.RP.A.1

CCSS.6.RP.A.3