9 3 4 7 10 July 8, 2019 16 32 64 128 3 7 4 9 10 divided by 5 9 10x 4 15x 7 3 5 3 x 4 7 9 10 3 9 10 x 4 7 8 4 9/10 plus 3 7/10 1 7 dibromo 3 4 9 10 perylenetetracarboxylic dianhydride 8 7 10 x 9 3 4 x2 1 7- dibromo-3 4 9 10-tetracarboxylic acid dianhydride 3 7 4 9 8 phần 14 10 phần 18
