3 2 x 10 19 July 8, 2019 16 32 64 128 3 x 10 2 2x 19 3 x 10 199 2 x 10 201 2 x 10 22 3 x 10 19 3 2×10-19 3 2×10 3 1/2 x 10 2 3•10^6
