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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
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4. 12
2. 9
3. 10
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5. 21
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6. 31
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Write the prime factorization of each number. The first one is done for
you.
7. 9
3
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8. 25
2
10. 14
9. 8
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11. 12
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12. 15
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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?
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14. What are two different ways that 9 can be written as a product of
two numbers?
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15. Find the prime factorization of 63 with the factor ladder. The first
step is done for you.
3
63
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1
Prime factorization: ______________________________________________________________
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