3 4 x 13 )=- 2 9 x July 8, 2019 16 32 64 128 3 4x 13 2 9x 9 3 x 13 )- 15 4 x 2 )- 9 4 3 x 7 2 5 7 9 x 4 13 2 9 x 4 ) 3 x 5 )- 13 3 x 3 = 9 13 x 0
