Prime Factorization Lcm Gcf Prime Composite Irrational Rational

Which set lists all the factors of 24?

• 1, 2, 3, 6, 7, 12, 24
• 1, 2, 3, 4, 6, 8, 12, 24
• 1, 2, 3, 4, 5, 6, 8, 12, 24
• 1, 3, 4, 6, 8, 24

Tags

CCSS.4.OA.B.4

Which one is a multiple of 4?

• 33
• 22
• 18
• 24

Tags

CCSS.4.OA.B.4

Which of these numbers is not prime?

• 17
• 25
• 23
• 37

Tags

CCSS.4.OA.B.4

Which is not a factor of 18?

• 7
• 2
• 3
• 9

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

Which of the following is prime?

• 18

• 19

• 27

• 45

Tags

CCSS.4.OA.B.4

Which lists all the factors of 20?

• 1, 2, 4, 5, 10, 20
• 1, 2, 5, 10, 20
• 1, 4, 5, 20
• 1, 2, 10, 20

Tags

CCSS.4.OA.B.4

Which number is not a multiple of 7?

• 70

• 77

• 63

• 55

Tags

CCSS.4.OA.B.4

2 x 2 x 2 is the prime factorization of

• 6

• 12

• 22

• 8

GCF of 8 and 20

• 8
• 2
• 4
• 10