3 3 x 60 July 8, 2019 16 32 64 128 3 3 4 x 60 3 3 x 5 )= 60 3 1 3 x 60 3 2 3 x 60 12 3 x 3 60 x 2 3 × 60 3 6 x 60 60 x 3