Question

Using the common factor method, find the H.C.F. of 8, 12 and 18

Answer 1

F₈ = 1, 2, 4, 8
F₁₂ = 1, 2, 3, 4, 6, 12
F₁₈ = 1, 2, 3, 6, 9, 18
Common factors between 8, 12 and 18 = 1, 2
H.C.F. of 8, 12 and 18 = 2