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```Name _______________________________________ Date __________________ Class __________________
Prime Factorization
LESSON
9-2
Practice and Problem Solving: D
List all of the factors of each number. Circle the prime factors.
The first one is done for you.
1. 6
1; 2; 3; 6
_______________________
4. 12
2. 9
3. 10
________________________
5. 21
_______________________
________________________
6. 31
________________________
________________________
Write the prime factorization of each number. The first one is done for
you.
7. 9
3
_______________________
8. 25
2
10. 14
9. 8
________________________
11. 12
_______________________
________________________
12. 15
________________________
________________________
13. There are 12 chairs in the meeting hall and an odd number of
tables. Each table has the same number of chairs. How many
tables are there?
________________________________________________________________________________________
14. What are two different ways that 9 can be written as a product of
two numbers?
________________________________________________________________________________________
15. Find the prime factorization of 63 with the factor ladder. The first
step is done for you.
3
63
______ ______
______ ______
1
Prime factorization: ______________________________________________________________
Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
177
```
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