least common multiple

Which of these numbers is a multiple of 18?

• 2
• 6

• 35

• 54

Tags

CCSS.4.OA.B.4

What is the LCM of 2, 4, and 9?

• 18
• 36
• 27
• 40

Tags

CCSS.6.NS.B.4

Joe has listed the first 4 multiples of 7 as:

7, 14 , 22, 28

Which one is incorrect?

• 7

• 14

• 22

• 28

Tags

CCSS.4.OA.B.4

Which choice lists all the factors for the number 24?

• 2, 3, 4, 6, 8, 12, 24
• 2, 3, 4, 6, 8, 12, 24, 36
• 1, 2, 3, 4, 6, 8, 12, 24
• 1, 2, 4, 5, 6, 8, 12 ,24

Tags

CCSS.4.OA.B.4

Which number is NOT prime?

• 3
• 7
• 17
• 21

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

Identify the number that is a multiple of 9...

• 78

• 79

• 80

• 81

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 5 and 11? 

• 25
• 55
• 11

Tags

CCSS.6.NS.B.4

What is the least common multiple of 5, 4, and 10?

• 20
• 40
• 10
• 30

Tags

CCSS.4.OA.B.4

What is the Greatest Common Factor of 35 and 49

• 5

• 7

• 1

• 17

Tags

CCSS.6.NS.B.4