3 4 2 8 7 July 8, 2019 16 32 64 128 1 3 4 2 8 7 3 4 1 2 7 8 in fraction 5 3 4 2 7 8 6 3 4 2 7 8 9 3 4 8 2 7 3 4 x 2 7 8 X 1 3 4 2 7 8 3 4 divided by 2 7 8 2 3 4 7 8 pentachlorodibenzofuran 2 3 4 7 8 pecdf 1 2 3 4 7 8 hxcdf 3 4 7 x 8 2 5 1 2 3 4 7 8-hexachloro dibenzo-p-dioxin 3 8 x 6 4 2 7 3 18x 2 4 8 76