Let * be a binary operation on N given by a * b = HCF (a, b), a, … - Vidyadip

Question

Let * be a binary operation on N given by a * b = HCF (a, b), a, b ∈ N. Write the value of 22 * 4.

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Answer

We have,a * b = HCF (a, b) for all a, b ∈ Z
Now, 22 * 4 = HCF (22, 4) = 2 $\therefore$ 22 * 4 = 2

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