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The GCF of 18, 20, and 26 is 2. The GCF of a set of numbers can't be any larger than the smallest difference between the numbers. The smallest difference within this set of numbers is 2. Since all of the numbers in the set are even, 2 is the greatest common factor.

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8y ago

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The GCF is 1.

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12y ago
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The GCF is 2.

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10y ago
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The GCF is 3.

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9y ago
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The GCF is 2.

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9y ago
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The GCF is 2.

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9y ago
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Q: What is the greatest common factor of 18 20 and 26?
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