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To find the greatest common factor (GCF) of 72 and 90, we can begin by listing the factors of each number: The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors of 72 and 90 are: 1, 2, 3, 6, 9, 18.Read more
To find the greatest common factor (GCF) of 72 and 90, we can begin by listing the factors of each number:
The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.
The common factors of 72 and 90 are: 1, 2, 3, 6, 9, 18.
To find the greatest common factor, we simply need to choose the largest common factor. In this case, the GCF of 72 and 90 is 18.
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