Factors, Multiples, Prime and Composite

Select all that are factor pairs of 90

• 3, 30

• 9, 10

• 4, 25

• 2, 45

• 6, 15

Find the PRIME number

• 10
• 9
• 7
• 4

Which is a NOT a factor of 9?

• 0
• 1
• 3
• 9

Which number is NOT prime?

• 3
• 7
• 17
• 21

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

Choose ALL the numbers that are PRIME.

• 21

• 91

• 2

• 51

• 41

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 list is only composite numbers?

• 1, 3, 4
• 2, 4, 6
• 4, 6, 8
• 5, 6, 8

Tags

CCSS.4.OA.B.4

Is 35 prime or composite?

• prime
• composite

Tags

CCSS.4.OA.B.4

Select all of the prime numbers.

• 2

• 11

• 13

• 9

• 15