Quiz about prime factorization

Question 1

What is the greatest common factor of 36 and 40

Accepted Answer

4

Answer

2

Answer

9

Answer

8

Question 2

What is the greatest common factor of 60 and 75

Accepted Answer

15

Answer

2

Answer

5

Answer

25

Question 3

What is the greatest common factor of 36 and 54

Accepted Answer

18

Answer

2

Answer

6

Answer

9

Question 4

What is the greatest common factor of 60 and 84

Accepted Answer

12

Answer

2

Answer

6

Answer

24

Question 5

Select all of the prime numbers.

Accepted Answer

2

Accepted Answer

7

Answer

1

Answer

18

Answer

21

Question 6

Select all of the prime numbers.

Accepted Answer

19

Accepted Answer

31

Accepted Answer

47

Answer

0

Answer

51

Question 7

28 is a _______________ number

Accepted Answer

composite

Answer

prime

Question 8

If two numbers do not share any common factors, they are considered to be _____________________________.

Accepted Answer

Relatively Prime

Answer

Prime

Answer

Half Prime

Answer

Sorta Prime

Question 9

All odd numbers are prime

Accepted Answer

False

Answer

True

Question 10

All even numbers are composite

Accepted Answer

False

Answer

True

Question 11

2 is the only even prime number

Accepted Answer

True

Answer

False

Question 12

The correct way to write prime factorization is _______________________.

Accepted Answer

least to greatest

Answer

greatest to least

Answer

alphabetical order

Question 13

Use a number tree to find the prime factorization of 32

Accepted Answer

2x2x2x2x2

Answer

2x2x2x4

Answer

4x4x2

Answer

2x2x2x2x1

Question 14

Use a number tree to find the prime factorization of 60

Accepted Answer

5x3x2x2

Answer

7x6x5

Answer

5x3x3x2

Answer

7x5x4

Question 15

Use a number tree to find the prime factorization of 42

Accepted Answer

7x3x2

Answer

4x4x3

Answer

6x7

Answer

5x4x2

Question 16

Use a number tree to find the prime factorization of 64

Accepted Answer

2x2x2x2x2x2

Answer

4x4x4

Answer

4x4x2x2

Answer

4x4x2x1

Question 17

Use a number tree to find the prime factorization of 33

Accepted Answer

11x3

Answer

33

Answer

10x3

Answer

3x3x3x2

Question 18

Use a number tree to find the prime factorization of 72

Accepted Answer

2x2x2x3x3

Answer

4x3x3x2

Answer

4x2x2x2x2

Question 19

Use a number tree to find the prime factorization of 48

Accepted Answer

3x2x2x2x2

Answer

4x2x6

Answer

4x2x2x3

Answer

12x4

Question 20

Use a number tree to find the prime factorization of 18

Accepted Answer

3x3x2

Answer

3x2x2

Answer

3x3x3

Answer

33x3

Question 21

Use a number tree to find the prime factorization of 105

Accepted Answer

7x5x3

Answer

11x5x3

Answer

7x5x2x1

Answer

7x5x3x2

Question 22

Use a number tree to find the prime factorization of 111

Accepted Answer

37x3

Answer

33x3

Answer

11x3x3

Answer

9x4x3x1

Question 23

2 x 2 x 2 or 2³is the prime factorization of

Accepted Answer

8

Answer

6

Answer

12

Answer

22

Question 24

What number is never allowed in a factor tree?

Accepted Answer

1

Answer

13 (it's bad luck!)

Answer

8675309

Answer

2

Question 25

Which is the prime factorization of 12?

Accepted Answer

22 x 3

Answer

2 x 6

Answer

2 + 2 + 2 + 2 + 2 + 2

Answer

1 x 2² x 3

Question 26

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

Accepted Answer

52 x 3

Answer

5 x 5 x 3

Answer

32 x 5

Answer

15 x 5

Question 27

Use a factor tree to find the prime factorization of 45

Accepted Answer

3 x 3 x 5

Answer

3 x 5 x 4

Answer

3 x 2 x 8

Answer

9 x 5

Question 28

Simplify.

Accepted Answer

1/2

Answer

1/4

Answer

1/3

Answer

1

Question 29

Simplify.

Accepted Answer

2/5

Answer

35

Answer

1/3

Answer

1/6

Question 30

Simplify.

Accepted Answer

3/4

Answer

1/4

Answer

6/10

Answer

4/4

Question 31

Which is NOT an equivalent fraction to:
3/4

Accepted Answer

9/16

Answer

75/100

Answer

9/12

Answer

30/40

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