Question

If b is factor of a , the HCF of a and b is

Answer 1

If A is a factor of B, then the HCF of A and B is A

Example:

Factors of 15:

1, 3, 5, 15

A = 5

B = 15

The HCF between them is 5.

Example 2:

Factors of 60:

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

A = 15

B = 60

The HCF of A and B is 15.

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