X 4 7 =- 2 34 July 8, 2019 16 32 64 128 7 x 2 4 * 7 x 1 347 49 x 4 7 2 *( 343 x 1 34 x 2 4 7 82 2 34 4 7 x 1 87 X 4 x 4 x 4
