To determine how many times less \( 10^2 \) is than \( 10^6 \), you can set up the problem as follows:
\[ \frac{10^2}{10^6} \]
Using the properties of exponents, this simplifies to:
\[ 10^{2 - 6} = 10^{-4} \]
Thus, \( 10^2 \) is \( 10^{-4} \) times less than \( 10^6 \).
The correct answer is:
\[ 10 \text{ to the power of } -4 \]