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The GCF of 36, 40, and 56 is 4.

Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18

Factors of 40: 1, 2, 4, 5, 8, 10, 20

Factors of 56: 1, 2, 4, 7, 8, 14, 28 Greatest common factor of 36, 40, & 56 is 4.

The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.

The prime factors of 36 are 2, 2, 3, and 3.

The prime factors of 40 are 2, 2, 2, and 5.

The prime factors of 56 are 2, 2, 2, and 7.

The prime factors in common are 2 and 2, so the greatest common factor is 2 x 2 =4.

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Q: What is the greatest common factor of 36 40 and 56?
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