Question

Find the HCF of 90, 15 are​

Answer 1

The factors of 90 are 90, 45, 30, 18, 15, 10, 9, 6, 5, 3, 2, 1.

The common factors of 15 and 90 are 15, 5, 3, 1, intersecting the two sets above.

In the intersection factors of 15 ∩ factors of 90 the greatest element is 15.

Therefore, the greatest common factor of 15 and 90 is 15.

Answer 2

Answer:

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