Prime Factorization | 542 plays

1.

Multiple Choice

15 mins

1 pt

A prime number...

has one factor.

has more than 2 factors.

has 100 factors.

has exactly 2 factors: 1 and the itself.

2.

Multiple Choice

15 mins

1 pt

A composite number ...

has more than 2 factors.

has one factor.

has at least 10 factors.

is always a really big number.

3.

Multiple Choice

15 mins

1 pt

One is...

prime

composite

not prime or composite

the loneliest number

4.

Multiple Choice

15 mins

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

5.

Multiple Choice

15 mins

1 pt

How would you write 3x3x3x3x3x3 in exponential notation?

three to the sixth power

729

6.

Multiple Choice

15 mins

1 pt

What number has the prime factorization of 2³• 11?

55

66

88

99

7.

Multiple Choice

15 mins

1 pt

Find the prime factorization of 18

2 • 9

2² • 3

2 • 3²

3 • 6

8.

Multiple Choice

15 mins

1 pt

Find the prime factorization of 60

5 • 12

2 • 3² • 5

2² • 3 • 5

2⁷

9.

Multiple Choice

15 mins

1 pt

Find the prime factorization of 30

2² • 5 • 7

2 • 3²

2 • 3 • 7

2 • 3 • 5

10.

Multiple Choice

15 mins

1 pt

Find the prime factorization of 81

2² • 7

2³ • 5 • 7

4³

3⁴

11.

Multiple Choice

15 mins

1 pt

Find the prime factorization of 108

2³ * 3²

2² • 3³

2⁵ • 3

2 • 3 • 7 • 11

12.

Multiple Choice

15 mins

1 pt

Find the prime factorization of 420

2² • 3 • 5 • 7

7⁷

2² • 3 • 11

2³ • 3 • 7

13.

Multiple Choice

15 mins

1 pt

What number has the prime factorization of 2³• 3² • 5?

360

720

180

240

14.

Multiple Choice

15 mins

10 pts

What is the prime factorization of 24 written in exponential notation?

2³ x 3

2² x 3 x 4

2² x 3

3 x 8

15.

Multiple Choice

15 mins

5 pts

The following prime factorization represents which number: 2² x 3 x 7

14

84

42

70

16.

Multiple Choice

15 mins

5 pts

Find the prime factorization of 100 in exponential form.

10 × 10

5⁴

4 x 25

2²× 5²

17.

Multiple Choice

15 mins

5 pts

Find the prime factorization of 75 in exponential form.

3 × 5²

3²× 5

5 × 15

3²× 5²

18.

Multiple Choice

15 mins

5 pts

Only 1 answer below could be correct for the prime factorization of a number. Which answer could be correct.

4⋅2⋅5

2⋅3²⋅7

15²⋅7

7²⋅4²

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