Prime Factorization Check for Understanding

Is 5 prime or composite? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4

A prime number

• has one factor
• has more than 2 factors
• has 100 factors
• has exactly 2 factors: 1 and the number

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorization of 42

• 4x4x3

• 6x7

• 7x3x2

• 5x4x2

Tags

CCSS.4.OA.B.4

Is 34, a prime or composite number? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4

Which is the prime factorization of 12? 

• 2 x 6
• 2 + 2 + 2 + 2 + 2 + 2 
• 2² x 3
• 1 x 2² x 3

Tags

CCSS.4.OA.B.4

Using a Factor Tree, find the prime factorization of 75.  

• 5² x 3
• 5 x 5 x 3
• 3² x 5
• 15 x 5

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

which of the following is not a prime number?

• 41

• 43

• 45

• 47

Tags

CCSS.4.OA.B.4

Which of the following is a prime number?

• 72

• 73

• 74

• 75

Tags

CCSS.4.OA.B.4

Choose one prime number.

• 1

• 2

• 4

• 6

Tags

CCSS.4.OA.B.4

Which of the following is not a prime number?

• 41

• 51

• 61

• 71

Tags

CCSS.4.OA.B.4