How do you write 3000000 40000 8000 2 .07 .003 in standard form?

To write the numbers 3,000,000; 40,000; 8,000; 2; 0.07; and 0.003 in standard form, express each as a product of a number between 1 and 10 and a power of ten. This results in: 3,000,000 as (3 \times 10^6), 40,000 as (4 \times 10^4), 8,000 as (8 \times 10^3), 2 as (2 \times 10^0), 0.07 as (7 \times 10^{-2}), and 0.003 as (3 \times 10^{-3}).