Review - Factors, Multiples, Prime Factorization

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

14, 49, and 28 are all multiples of what number?

• 2
• 7
• 4
• 5

Tags

CCSS.4.OA.B.4

Which number is a factor of 6?

• 12
• 2
• 8
• 10

Tags

CCSS.4.OA.B.4

The only factors of 9 are 1 and 9 making the number 9 prime.

• True
• False

Tags

CCSS.4.OA.B.4

Which number is NOT prime?

• 3
• 7
• 17
• 21

Tags

CCSS.4.OA.B.4

Which of the following are multiples of 6...

• 1, 2, 3, 6
• 12, 18, 24
• 2, 4, 6, 8
• none

Tags

CCSS.4.OA.B.4

A composite number is...

• a number with more than 2 factors
• a number that has ONLY 2 factors
• is an odd number
• is NEVER an odd number

Tags

CCSS.4.OA.B.4

Which number is prime?

• 9
• 5
• 15
• 1

Tags

CCSS.4.OA.B.4

7 x 20=

• 720
• 72
• 14
• 140

Tags

CCSS.3.NBT.A.3

2 x 80=

• 16
• 160
• 280
• 28

Tags

CCSS.3.NBT.A.3