Quiz 1-3 REVIEW: Prime Factorization, GCF, and LCM

What are all the factors of 36?

• 2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36

• 1,2,3,4,6,9,12,18,36

• 2,3,4,6,9,12,18

• 4,8,12,16,20,24,28,32,36

Which of the following numbers shows all of the factors of 12?

• 1,2,3,4,6,12
• 1,2,3,4,6,8,12
• 1,2,4,6,12
• 2,4,6,8,10,12

Tags

CCSS.4.OA.B.4

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25
• 1, 5,  25
• 1, 25
• 1, 5

Tags

CCSS.4.OA.B.4

Which statement below correctly defines a prime number?

• A prime number is always odd

• A prime number is a number that has more than two factors

• A prime number has exactly two factors- one and itself

• A prime number has at least three factors- one, itself, and another factor

Mrs. Hall's twenty-four students need to be grouped for a project. Which list shows all the different ways she could group her class so that each group has the same number of students?

• 2,4,6,8,10,12,14,16,20,24

• twenty-four

• 1,2,3,4,6,8,12,24

Tags

CCSS.6.NS.B.4

Verenice is making a list of prime numbers. Which list below could be hers?

• 2,4,6,8,10,12

• 9,25,49,81

• 3,5,7,9,11

• 3,5,7,11,15

Jazlynn is making a list of composite numbers. Which list below could be hers?

• 1,3,5,7,11,13,17

• 2,4,6,8,10,12

• 22,46,84,98

• 3,6,9,12,15

Tags

CCSS.4.OA.B.4

6

• Prime

• Composite

Tags

CCSS.4.OA.B.4

17

• Prime

• Composite

Tags

CCSS.4.OA.B.4

21

• Prime

• Composite