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Prime Factorization

Authored by Ron Schroeder

Mathematics

7th Grade

CCSS covered

Prime Factorization
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13 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

2 x 2 x 2  or 2is the prime factorization of

6
12
22
8

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What number is never allowed in a factor tree? 

13 (it's bad luck!)
8675309
2

Tags

CCSS.6.EE.A.1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is the prime factorization of 12? 

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

4.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

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

52 x 3

3 x 5 x 7

32 x 5

15 x 5

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Use a number tree to find the prime factorization of 48

4x2x6
4x22x3
3x24
12x4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the expanded form is 2⋅2⋅2⋅3⋅3⋅5⋅7 what would the exponential form be?

2⋅3⋅5⋅7
2³⋅3²⋅5⋅7
2²⋅3²⋅5⋅7
8⋅9⋅35

Tags

CCSS.6.EE.A.1

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following are all prime numbers

2, 3, 6, 7, 9
2, 4, 8, 16
2, 3, 5, 7, 9
2, 3, 5, 7, 11

Tags

CCSS.4.OA.B.4

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