2 5 x 3 )=- 28 July 8, 2019 16 32 64 128 1 /( x 5 2 3 /( x 5 )- 28 0 5 3 x 2 )- 10 28 2 x 5 2 x 4 2 x 3 28 X x 2 )( x 3 )( x 5 )= 280 2 x 2 5