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1. |
Look at the factors of 18 and 30. What is the greatest common factor?
factors of 18: 1, 2, 3, 6, 9, 18
factors of 30: 1, 2, 3, 5, 6, 10, 15, 30 |
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A. |
3 |
B. |
5 |
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C. |
6 |
D. |
2 |
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Hint |
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2. |
Which two numbers have a GCF of 9? |
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A. |
18, 36 |
B. |
36, 45 |
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C. |
45, 95 |
D. |
36, 39 |
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Hint |
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3. |
Look at the factors of 24 and 16. What is the greatest common factor?
factors of 16: 1, 2, 4, 8, 16
factors of 24: 1, 2, 3, 4, 6, 8, 12, 24 |
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A. |
8 |
B. |
2 |
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C. |
4 |
D. |
16 |
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Hint |
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4. |
Find the GCF of 32 and 42. |
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A. |
14 |
B. |
4 |
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C. |
2 |
D. |
3 |
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Hint |
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5. |
Find the GCF of 33, 48, and 54. |
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A. |
8 |
B. |
1 |
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C. |
2 |
D. |
3 |
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Hint |
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