Lisa is making activity baskets to donate to charity. She has 12 coloring books and
36 crayons. What is the greatest number of baskets she can make if each type of
toy is equally distributed among the baskets?

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

noncoplanar points are points that do not lie on the same line.