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

Question

Let * be a binary operation on $\mathrm{N}$ given by $\mathrm{a}^* \mathrm{~b}=\mathrm{HCF}(\mathrm{a}, \mathrm{b}), \mathrm{a}, \mathrm{b} \in \mathrm{N}$. Write the value of $22^* 4$.

Answer 1

SOLUTION : $a^* b=\operatorname{HCF}(a, b)$

$\therefore \quad 22 \cdot 4=\operatorname{HCF}(22,4)=2$