2001 Gauss 8 Problem 20

What number should be placed in the box to make 10^4 \times 100^{\square} = 1000^6?

\textbf{(A)}\ 7\quad \textbf{(B)}\ 5\quad \textbf{(C)}\ 2\quad \textbf{(D)}\ \frac{3}{2}\quad \textbf{(E)}\ 10

If there are no answer choices shown, enter a numerical answer.

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