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The factors of 18 are: 1, 2, 3, 6, 9, 18

The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40

The common factors are: 1, 2

  • The Greatest Common Factor (GCF) is: 2
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Q: What is the GCF for 18 and 40?
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The GCF of 18 and 40 is 2.


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The greatest common factor is the highest number that divides exactly into two or more numbers. 18: 1, 2, 3, 6, 9, 18 40: 1, 2, 4, 5, 8, 10, 20, 40 The GCF for 18 and 40 is 2.


What is the greatest common factor of 18 24 and 40?

To find the greatest common factor (GCF) of 18, 24, and 40, we first need to find the factors of each number. The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24. The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. The largest number that is common among the factors of 18, 24, and 40 is 2, making the GCF of 18, 24, and 40 equal to 2.


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