20=2*2*5,windows,4*4*4*4*4=20,18 = 2 * 3 * 3,16 = 2 * 2 * 2 * 2,2*2*2*2*2=32,2*3*5*7*11*13=30030,2*2*2*2=16,3187,what number?,2*2*2=2,4*48,10,27 = 3 * 3 * 3,49=7*7,3*9*3=81,12748,