5 2 6 2 1 4 July 8, 2019 16 32 64 128 2 5 6 x 2 1 4 5 6 2 1 4 as a fraction 5 6 2 1 4 9 2 5 6 1 4 8 5 6 2 4 1 3 2 5 6 2 1 3 x 2 1 4 3-(2-pyridyl)-5 6-diphenyl-1 2 4-triazine
