Write \( 1.421 \times 10^{6} \) in standard notation. \begin{tabular}{|l|l}\hline\( \square \)\end{tabular}

To convert \( 1.421 \times 10^{6} \) to standard notation, you move the decimal point six places to the right. This gives you \( 1421000 \). So, in standard notation, the answer is \( 1,421,000 \).