Question

What is the HCF of 18, 42, 24

Answer 1

Answer:

$6$

Step-by-step explanation:

$18 = 2\times 3\times 3 = 2 \times {3}^{2} \\ 42 = 2 \times 3 \times 7 \\ 24 = 2 \times 2 \times 2 \times 3 = 2 {}^{3} \times 3$

$HCF (18, 42, 24) = 2 \times 3 = 6$