To write 771,600 in scientific notation, you want to express it in the form \( a \times 10^n \), where \( 1 \leq a < 10 \) and \( n \) is an integer.
- Move the decimal point in 771,600 to the left until you have a number between 1 and 10. In this case, moving the decimal point 5 places to the left gives you 7.716.
- Count how many places you moved the decimal point. Here, you moved it 5 places to the left, so \( n = 5 \).
Therefore, 771,600 in scientific notation is:
\[ 7.716 \times 10^5 \]