Question

What is the HCF of 20, 40 and 100? ​

Answer 1

Answer:

The common factors of 40 and 100 are 20, 10, 5, 4, 2, 1, intersecting the two sets above

Answer 2

Answer:

The common factors of 40 and 100 are 20, 10, 5, 4, 2, 1, intersecting the two sets above. In the intersection factors of 40 ∩ factors of 100 the greatest element is 20. Therefore, the greatest common factor of 40 and 100 is 20.

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