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Answers for “如何通过列出因数来求两个数的最大公约数?”

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To find the GCF by listing factors, list all positive factors of the first number, list all positive factors of the second number, identify the factors that appear in both lists, and select the largest number from the common factors.

Conditions: The inputs are positive integers.; Listing is practical for the small examples; it is not asserted to be the fastest method.

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The greatest common factor (GCF) is the largest positive divisor shared by all of the compared positive integers. It is the maximum value in the set of their common factors.

Conditions: At least two positive integers are compared.; Positive divisors are compared.

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A common factor is a positive integer that divides each of the compared positive integers exactly. It appears in the positive-factor list of every number being compared.

Conditions: Compare two or more positive integers.; The common factor is positive and divides each target exactly.