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What is the greatest common factor of 63 56 42 and 21?

Updated: 4/28/2022

Wiki User

9y ago

The greatest common factor is the highest number that divides exactly into two or more numbers.

21: 1, 3, 7, 21

42: 1, 2, 3, 6, 7, 14, 21, 42

56: 1, 2, 4, 7, 8, 14, 28, 56

63: 1, 3, 7, 9, 21, 63

The greatest common factor for 21, 42, 56 and 63 is 7.

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9y ago

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Q: What is the greatest common factor of 63 56 42 and 21?
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