/ 2\ / 2 \ / 2 3 4\ / 7 8 3 4 5\ / 3 5 8 4 7\
(-1 + x)*\1 + x + x /*\1 + x - x/*\1 + x + x + x + x /*\1 + x + x + x - x - x - x /*\1 + x + x + x - x - x - x /
$$\left(x - 1\right) \left(x^{2} - x + 1\right) \left(x^{2} + x + 1\right) \left(x^{4} + x^{3} + x^{2} + x + 1\right) \left(x^{8} - x^{7} + x^{5} - x^{4} + x^{3} - x + 1\right) \left(x^{8} + x^{7} - x^{5} - x^{4} - x^{3} + x + 1\right)$$