Answer
$\underline{\text{greater than or equal to 1 and less than 10}}$;
$\underline{\text{integer}}$
Work Step by Step
A positive number is written in scientific notation when it is expressed in the form $a \times 10^n$ where $a$ is greater than or equal to 1 and less than 10, and $n$ is an integer. Furthermore, it is in the form, $a*10^n$.
