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The GCF of 56 and 80 is 8.
One way to determine the greatest common factor is to find all the factors of the numbers and compare them.
The factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56.
The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80.
The common factors are 1, 2, 4, and 8. Therefore, the greatest common factor is 8.
The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.
The prime factors of 56 are 2, 2, 2, and 7.
The prime factors of 80 are 2, 2, 2, 2, and 5.
The prime factors in common are 2, 2, and 2, so the greatest common factor is 2 x 2 x 2 = 8.
Summary of results:
The common factors are 1, 2, 4, and 8.
The greatest common factor is 8.
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∙ 6y ago
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