A factor rainbow is a method of matching factors whose product is the number of interest.
You can, for example, write
24 = 1*24 = 2*12 = 3*8 = 4*6
Or, you can express the same thing using a factor "rainbow."
You can, for example, write
24 = 1*24 = 2*12 = 3*8 = 4*6
Or, you can express the same thing using a factor "rainbow."