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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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7y ago
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11y ago

The GCF is 1.

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9y ago

The GCF is 2.

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8y ago

The GCF is 3.

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8y ago

The GCF is 2.

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7y ago

The GCF is 2.

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