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The greatest common factor (GCF) of 35, 28, and 21 is 7. To find the GCF, you need to identify the common factors of the numbers and then determine the largest number that divides all three numbers evenly. In this case, the factors of 35 are 1, 5, 7, and 35; the factors of 28 are 1, 2, 4, 7, 14, and 28; and the factors of 21 are 1, 3, 7, and 21. The largest number that appears in all three lists is 7, making it the GCF.

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The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

The greatest common factor of 21, 28, and 35 is 7

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15y ago
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7

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15y ago
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Q: What is the greatest common factor of 35 28 and 21?
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