Least Common Multiple

What is the least common multiple (LCM) of 3 and 20?

• 60
• 40
• 20
• 3

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 8 and 5?

• 50
• 40
• 5
• 8

Tags

CCSS.4.OA.B.4

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

• 30
• 2
• 45
• 152

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 6 and 8?

• 6
• 8
• 48
• 24

Tags

CCSS.4.OA.B.4

The multiples of 7 are
1,6,7,9,3,6,4

• True
• False

Tags

CCSS.4.OA.B.4

Choose the correct list of the first five multiples of 10.

• 1, 10, 20, 30, 40
• 10, 20, 30, 40, 50
• 5, 10, 15, 20, 25
• 10, 30, 40, 50, 60

Tags

CCSS.4.OA.B.4

CCSS.4.NBT.B.5

Choose the correct list of the first five multiples of 6. 

• 6, 12, 18, 32, 36
• 6, 14, 22, 28, 34
• 6, 12, 18, 24, 32
• 1, 6, 12, 18, 24

Tags

CCSS.4.OA.B.4

If Juanita runs every third day and swims every fifth day, what is the first day that she will both run and swim again? 

• 5
• 15
• 45
• 30

Tags

CCSS.6.NS.B.4

Cups are sold 5 to a package and plates are sold 10 to a package. If you want to have the same number of each item for a party, what is the least number of packages of each you need to buy?

• 30
• 20
• 50
• 10

Tags

CCSS.6.NS.B.4

CCSS.6.RP.A.3

Use a number tree to find the prime factorization of 34

• 2x2x2x4
• 2x2x2x2x2
• 4x4x2
• 2x2x2x2x1