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What is the greatest common factor of 20 and 18?

Updated: 8/17/2019
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Wiki User

8y ago

Best Answer

The GCF of 18 and 20 is 2.

The prime factors of 18 are 3, 3, 2

The prime factors of 20 are 5, 2, 2,

The Greatest Common Factor is the highest factor that goes into both numbers, so the GCF is 2.

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7y ago
This answer is:
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8y ago

The GCF is 2.

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14y ago

2.

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