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Prime factorization

Authored by Nicole Gillis

5th Grade

Prime factorization
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the prime factorization of 18

2 • 9

22 • 3

2 • 32

3 • 6

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the prime factorization of 60

5 • 12

2 • 32 • 5

22 • 3 • 5

27

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the prime factorization of 30

22 • 5 • 7

2 • 32

2 • 3 • 7

2 • 3 • 5

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the prime factorization of 81

22 • 7

23 • 5 • 7

43

34

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the prime factorization of 108

23 * 32

22 • 33

25 • 3

2 • 3 • 7 • 11

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the prime factorization of 420

22 • 3 • 5 • 7

77

22 • 3 • 11

23 • 3 • 7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the greatest common factor of 36 and 40

2

9

4

8

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