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The greatest common factor of 42, 70, and 84 is 14

The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

The factors of 70 are: 1, 2, 5, 7, 10, 14, 35, 70

The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

The common factors are: 1, 2, 7, 14

The Greatest Common Factor (GCF) is: 14

42 = 2 x 3 x 7

70 = 2 x 5 x 7

84 = 2² x 3 x 7

hcf = 2 × 7 = 14

(The product of the prime common across all numbers to their lowest power)

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6y ago
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6y ago

The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.

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6y ago

GCF(4270, 84) = 14.

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Q: What is the greatest common factor of 42 70 and 84?
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