Quiz about Factoring Prime

Question 1

A prime number...

Accepted Answer

has exactly 2 factors: 1 and the itself.

Answer

has one factor.

Answer

has more than 2 factors.

Answer

has 100 factors.

Question 2

A composite number ...

Accepted Answer

has more than 2 factors.

Answer

has one factor.

Answer

has at least 10 factors.

Answer

is always a really big number.

Question 3

One is...

Accepted Answer

not prime or composite

Answer

prime

Answer

composite

Answer

the loneliest number

Question 4

Which of the following is NOT prime?

Accepted Answer

39

Answer

29

Answer

23

Answer

17

Question 5

Is 5, a prime or composite number?

Accepted Answer

Prime

Answer

Composite

Question 6

Is 12, a prime or composite number?

Accepted Answer

Composite

Answer

Prime

Question 7

Is 17, a prime or composite number?

Accepted Answer

Prime

Answer

Composite

Question 8

Is 34, a prime or composite number?

Accepted Answer

Composite

Answer

Prime

Question 9

All of these are prime except

Accepted Answer

9

Answer

3

Answer

2

Answer

13

Question 10

2 x 2 x 2 is the prime factorization of...

Accepted Answer

8

Answer

6

Answer

12

Answer

22

Question 11

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 12

What is the prime factorization of 16 ?

Accepted Answer

24

Answer

1 x 16

Answer

22x 4

Answer

22 + 22

Question 13

Find the prime factorization of 72

Accepted Answer

23 x 32

Answer

2 x 3² x 4

Answer

24 x 33

Answer

22 x 62

Question 14

Find the prime factorization of 105

Accepted Answer

7x5x3

Answer

11x5x3

Answer

7x5x2x1

Answer

7x5x3x2

Question 15

What are the prime factors of 30?

Accepted Answer

3, 2, 5

Answer

1, 2, 3, 5, 6, 15, 30

Answer

3, 30

Answer

10, 3

Question 16

What number is never allowed on a factor tree by itself?

Accepted Answer

1

Answer

13 (it's bad luck!)

Answer

8675309

Answer

2

Question 17

Jaselyn and Ky are working on the prime factorization of 63. Read their explanations and decide which student is correct.

Accepted Answer

Ky said the prime factorization of 63 is 3²x 7 because 3²times 7 equals 63 and the bases in his answer are all prime.

Answer

Jaselyn said the prime factorization of 63 is 7 x 9 because 7 times 9 is 63.

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