Answer:
8
Step-by-step explanation:
32 = 2 x 2 x 2 x 2 x 2
48 = 2 x 2 x 2 x 2 x 3
72 = 2 x 2 x 2 x 3 x 3
HCF ( 32, 48, 72 )
= 2 x 2 x 2
= 8
