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20 questions
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- 1. Multiple Choice
Find the prime factorization of 18
2 • 9
22 • 3
2 • 32
3 • 6
- 2. Multiple Choice
Find the prime factorization of 60
5 • 12
2 • 32 • 5
22 • 3 • 5
27
- 3. Multiple Choice
Find the prime factorization of 30
22 • 5 • 7
2 • 32
2 • 3 • 7
2 • 3 • 5
- 4. Multiple Choice
Find the prime factorization of 81
22 • 7
23 • 5 • 7
43
34
- 5. Multiple Choice
Find the prime factorization of 108
23 * 32
22 • 33
25 • 3
2 • 3 • 7 • 11
- 6. Multiple Choice
Find the prime factorization of 420
22 • 3 • 5 • 7
77
22 • 3 • 11
23 • 3 • 7
- 7. Multiple Choice
What is the greatest common factor of 36 and 40
2
9
4
8
- 8. Multiple Choice
What is the greatest common factor of 60 and 75
2
5
15
25
- 9. Multiple Choice
What is the greatest common factor of 36 and 54
2
6
9
18
- 10. Multiple Choice
What is the greatest common factor of 60 and 84
2
6
12
24
- 11. Multiple Choice
What number has the prime factorization of 23 • 11?
55
66
88
99
- 12. Multiple Choice
What number has the prime factorization of 23 • 32 • 5?
360
720
180
240
- 13. Multiple Choice
Select all of the prime numbers.
1
2
7
18
21
- 14. Multiple Choice
Select all of the prime numbers.
0
19
31
47
51
- 15. Multiple Choice
28 is a _______________ number
prime
composite
- 16. Multiple Choice
If two numbers do not share any common factors, they are considered to be _____________________________.
Prime
Half Prime
Relatively Prime
Sorta Prime
- 17. Multiple Choice
All odd numbers are prime
True
False
- 18. Multiple Choice
All even numbers are composite
True
False
- 19. Multiple Choice
2 is the only even prime number
True
False
- 20. Multiple Choice
The correct way to write prime factorization is _______________________.
greatest to least
least to greatest
alphabetical order
- Answer choicesTagsAnswer choicesTags