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The greatest common factor of 9 and 15 i...

The greatest common factor of 9 and 15 is ________

A

1

B

2

C

4

D

3

Text Solution

AI Generated Solution

The correct Answer is:
To find the greatest common factor (GCF) of 9 and 15, we can follow these steps: ### Step 1: Find the factors of each number. - **Factors of 9**: The factors are 1, 3, and 9. - **Factors of 15**: The factors are 1, 3, 5, and 15. ### Step 2: Identify the common factors. - The common factors of 9 and 15 are the factors that appear in both lists. - Common factors: 1 and 3. ### Step 3: Determine the greatest common factor. - Among the common factors (1 and 3), the greatest one is 3. ### Conclusion: - The greatest common factor (GCF) of 9 and 15 is **3**. ---

To find the greatest common factor (GCF) of 9 and 15, we can follow these steps: ### Step 1: Find the factors of each number. - **Factors of 9**: The factors are 1, 3, and 9. - **Factors of 15**: The factors are 1, 3, 5, and 15. ### Step 2: Identify the common factors. - The common factors of 9 and 15 are the factors that appear in both lists. ...
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  • The highest common factor of 70 and 245 is -

    A
    35
    B
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    D
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    A
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    B
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    120
    B
    180
    C
    60
    D
    90
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