Question

Highest common factor of 18 , 32, 48

Answer 1

$18 = 2 \times 3 \times 3 \\ 32 = 2 \times 2 \times 2 \times 2 \times 2 \\ 48 = 2 \times 2 \times 2 \times 2 \times 3$

2 is common factor