To find how many times less \( 10^2 \) is than \( 10^6 \), you can calculate the ratio of \( 10^2 \) to \( 10^6 \):
\[ \frac{10^2}{10^6} = 10^{2-6} = 10^{-4} \]
So, \( 10^2 \) is \( 10^{-4} \) times less than \( 10^6 \).
The correct answer is:
\( 10^{-4} \)