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12 questions
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- 1. Multiple Choice
What is the missing factor?
1
2
5
8
- 2. Multiple Choice
What are the missing factors?
2 and 3
3 and 6
3 and 3
1 and 9
- 3. Multiple Choice
What is the missing factor?
3
5
6
7
- 4. Multiple ChoiceWhat are the factors of 25?1, 2, 3, 5, 10, 15, 251, 5, 251, 251, 5
- 5. Multiple ChoiceWhat are the factors of 24?1, 2, 3, 4, 6, 8, 12, 241, 3, 6, 8, 241, 2, 3, 4, 61, 24
- 6. Multiple Choice
Use a factor tree to find prime factorization of 24.
2 x 3 x 2 x 3
2 x 3 x 2 x 2
6 x 2 x 2
2 x 3 x 4
- 7. Multiple Choice
Which of the following numbers is prime?
15
18
19
21
- 8. Multiple Choice
Use a factor tree to find the prime factorisation of 168
- 9. Multiple Choice
Find the prime factorization of 18
2 • 9
22 • 3
2 • 32
3 • 6
- 10. Multiple Choice
Find the prime factorization of 60
5 • 12
2 • 32 • 5
22 • 3 • 5
27
- 11. Multiple Choice
Find the prime factorization of 30
22 • 5 • 7
2 • 32
2 • 3 • 7
2 • 3 • 5
- 12. Multiple Choice
Find the prime factorization of 81
22 • 7
23 • 5 • 7
43
34
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