Question

Use a method of your own choice to find the H.C.F. of 24, 36, 60, and 132.

Answer 1

Factor of 24 = F₂₄ = 2 x 2 x 2 x 3
Factor of 36 = F₃₆ = 2 x 2 x 3 x 3
Factor of 60 = F₆₀ = 2 x 2 x 3 x 5
and Factor of 132 = F₁₃₂ = 2 x 2 x 3 x 11
Now the common factors of 24, 36, 60 and 132 = 2, 2 and 3
H.C.F. = 2 x 2 x 3 = 12