5×103

5×103 is a numerical expression representing the product of the number 5 and the number 10 to the power of 3. This is a form of scientific notation, a way of expressing very large or very small numbers.

To calculate the value of 5×103, we first determine the value of 103. The exponent 3 means that 10 is multiplied by itself three times: 10 × 10 × 10. This results in 1000.

Once we have the value of 103, we multiply it by 5. So, 5 × 1000 equals 5000. Therefore, 5×103 is equivalent to 5000.

Scientific notation is often used in fields such as science, engineering, and mathematics to simplify the writing and manipulation of numbers with many zeros. In this case, 5×103 is a more concise way to represent 5000 than writing out all the digits. It clearly indicates the magnitude of the number, with the '5' representing the significant digits and '103' indicating the place value or the order of magnitude.