The technology output for \( \frac{1}{2^{64}} \) is \( 5.42101086 \mathrm{E}-20 \). Write this number in scientific notation with three significant digits. The number \( \frac{1}{2^{64}} \) written in scientific notation with three significant digits is (Use scientific notation. Use the multiplication symbol in the math palette as needed.)

The number \( \frac{1}{2^{64}} \) in scientific notation with three significant digits is \( 5.42 \times 10^{-20} \). This representation keeps the value concise while maintaining the precision required for scientific calculations. In scientific notation, we focus on the significant figures and the exponent, making it easier to compare very small numbers like this one!