What is (2x10x10x10x10x10x10) (3x10x10x10x10)?

To simplify the expression ((2 \times 10^6) \times (3 \times 10^4)), first, multiply the coefficients: (2 \times 3 = 6). Next, add the exponents of 10: (10^6 \times 10^4 = 10^{6+4} = 10^{10}). Therefore, the final result is (6 \times 10^{10}).