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101-B3-2

3. Find the GCF of each pair of numbers.

a. 28 , 35 b. 16 , 36

4. We are trying to find the GCF of 18 and 54. Write the correct numbers in the
blanks.

2 18 54
9 2
39
3

5. Find the GCF of the two numbers. 16
16, 28 28
The GCF =
   31   32   33   34   35   36   37   38   39   40   41