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Factor them.

2 x 3 x 3 = 18

2 x 2 x 3 x 3 = 36

2 x 2 x 2 x 2 x 3 = 48

Select the common factors.

2 x 3 = 6, the GCF

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11y ago
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Wiki User

11y ago

The GCF is 3.

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Q: What is the greatest common factor of 48 39 and 18?
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