Question 1

What is the prime factorization of 81?

Accepted Answer

$3^4$

Answer

$9^2$

Answer

$3^3$

Answer

$2 	imes 3^3$

Question 2

What is the prime factorization of 105?

Accepted Answer

$3 	imes 5 	imes 7$

Answer

$3 	imes 5^2$

Answer

$3 	imes 5 	imes 11$

Answer

$2 	imes 5^2$

Question 3

What is the prime factorization of 333?

Accepted Answer

$3^2	imes 37$

Answer

$33	imes 11$

Answer

$3	imes 111$

Answer

$9	imes 37$

Question 4

Which of these is NOT prime?

Accepted Answer

91

Answer

31

Answer

61

Answer

71

Question 5

Which of these IS prime?

Accepted Answer

97

Answer

87

Answer

93

Answer

95

Question 6

What is the prime factorization of 44?

Accepted Answer

$2^2	imes11$

Answer

$2	imes 22$

Answer

$4	imes11$

Answer

$4	imes22$

Question 7

What is the greatest common factor between 12 and 15?

Accepted Answer

3

Answer

4

Answer

5

Answer

1

Question 8

What is the greatest common factor between 40 and 35?

Accepted Answer

5

Answer

15

Answer

10

Answer

20

Question 9

What is the greatest common factor between 7 and 8?

Accepted Answer

1

Answer

2

Answer

8

Answer

7

Question 10

What is the greatest common factor between 16 and 20?

Accepted Answer

4

Answer

10

Answer

8

Answer

2

Question 11

What is the greatest common factor between 33 and 44?

Accepted Answer

11

Answer

22

Answer

4

Answer

3

Question 12

What is the greatest common factor between 90 and 60?

Accepted Answer

30

Answer

10

Answer

60

Answer

3

Question 13

What is the greatest common factor between 16 and 32?

Accepted Answer

16

Answer

4

Answer

8

Answer

2

Question 14

What is the greatest common factor between 19 and 21?

Accepted Answer

1

Answer

19

Answer

3

Answer

21

Question 15

What is the greatest common factor between 87 and 58?

Accepted Answer

29

Answer

2

Answer

3

Answer

58

Question 16

What is the greatest common factor between 40 and 46?

Accepted Answer

2

Answer

8

Answer

10

Answer

4

Question 17

What is the greatest common factor between 40 and 48?

Accepted Answer

8

Answer

2

Answer

4

Answer

18

Question 18

What is the prime factorization of 100?

Accepted Answer

$2^2	imes5^2$

Answer

$2^3	imes5$

Answer

$2	imes5^3$

Answer

$10^2$

Question 19

What is the prime factorization of 1000?

Accepted Answer

$2^3	imes5^3$

Answer

$2^5	imes5$

Answer

$2^4	imes5^2$

Answer

$2^3	imes5^4$

Question 20

What is the prime factorization of 64?

Accepted Answer

$2^6$

Answer

$2^4$

Answer

$2^7$

Answer

$2^5$

Question 21

What is the prime factorization of 81?

Accepted Answer

$3^4$

Answer

$3^3$

Answer

$3^5$

Answer

$2	imes3^3$

Question 22

What is the greatest common factor between 17 and 51?

Accepted Answer

17

Answer

15

Answer

1

Answer

3

Question 23

What is the greatest common factor between 92 and 44?

Accepted Answer

4

Answer

2

Answer

8

Answer

11

Question 24

What is the greatest common factor between 9 and 15?

Accepted Answer

3

Answer

5

Answer

6

Answer

2

Question 25

Which of the following is NOT a factor of 13,200?

Accepted Answer

7

Answer

55

Answer

60

Answer

8

Question 26

What is the Least Common Multiple of 16 and 20?

Accepted Answer

80

Answer

20

Answer

100

Answer

60

Question 27

What is the Least Common Multiple of 17 and 51?

Accepted Answer

51

Answer

102

Answer

17

Answer

867

Question 28

What is the Least Common Multiple of 100 and 200?

Accepted Answer

200

Answer

300

Answer

100

Answer

400

Question 29

What is the Least Common Multiple of 2 and 3?

Accepted Answer

6

Answer

3

Answer

2

Answer

1

Question 30

What is the Least Common Multiple of 9 and 12?

Accepted Answer

36

Answer

48

Answer

108

Answer

18

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