You have the number 10^100 Write the number that is half as large. Answer in basic power form.

Solution:
1. Given:
- Original number: 10^{100}
- We need to find the number that is half as large.

2. Arithmetic step:
- Half of the given number can be expressed as:
\frac{10^{100}}{2}

3. Simplifying:
- Though it can't be simplified further in basic power form, it can be expressed as:
0.5 \cdot 10^{100}

Thus, the number that is half as large as 10^{100} is:
0.5 \cdot 10^{100}