2 4 6 x 3 1 5 x 9 8 July 8, 2019 16 32 64 128 2 4 x 5 3 x 9 2 8 x 3 6 x 125 1 2 + 3 + 4 + 5 + 6 (2–6 • 4–3) / 8–7
