5 \cdot 10^5 is how many times as large as 1\cdot10^5

To find how many times \( 5 \cdot 10^5 \) is as large as \( 1 \cdot 10^5 \), you can divide \( 5 \cdot 10^5 \) by \( 1 \cdot 10^5 \):

\[
\frac{5 \cdot 10^5}{1 \cdot 10^5}
\]

Now, you can simplify this:

\[
= \frac{5}{1} \cdot \frac{10^5}{10^5}
\]
\[
= 5 \cdot 1
\]
\[
= 5
\]

So, \( 5 \cdot 10^5 \) is 5 times as large as \( 1 \cdot 10^5 \).