Factors and Multiples

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

• True
• False

Which number is a composite number?

• 10
• 5
• 7

Which number is a factor of 8?

• 3
• 5
• 2

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

What number is a factor of 6 but NOT a multiple of 2?

• 3
• 4
• 6
• 8

Tags

CCSS.4.OA.B.4

List the first 5 multiples of 8

• 1, 2, 4, 8
• 8, 16, 25, 32, 40
• 8, 16, 24, 32, 40
• 8, 16, 24, 31, 40

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 is true about ALL prime numbers.

• They are all even.
• They are all odd.
• They have exactly two factors.
• They do not have any factors.

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

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