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The greatest common factor is 6. The factors of 18 are 1, 2, 3, 6, 9, and 18.

The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.

The common factors are 1, 2, 3, and 6. Therefore, the greatest common factor is 6.

The greatest common factor can also be determined from the prime factors.

The prime factors of 18 are 2, 3, and 3.

The prime factors of 60 are 2, 2, 3, and 5.

The prime factors they have in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.
The GCF is 6.

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βˆ™ 8y ago
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βˆ™ 14y ago

Factors of 18: 1, 2, 3, 6, 9, and 18

Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60

Common factors: 1, 2, 3, and 6

Greatest common factor: 6

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βˆ™ 14y ago

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Q: What is the greatest common factor of 60 and 18?
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