1×103

1×103 is a mathematical expression representing the product of the number one and ten raised to the power of three. This simplifies to 1 × 1000, which equals 1000. The expression is a way of writing the number one thousand using scientific notation. Scientific notation is a method of expressing numbers that are too large or too small to be conveniently written in decimal form. It is commonly used by scientists, mathematicians, and engineers.

In this specific case, the number one is the coefficient, and 10³ is the power of ten. The exponent, 3, indicates that the decimal point in the coefficient (which is implicitly 1.0) should be moved three places to the right. Moving the decimal point in 1.0 three places to the right results in 1000. Therefore, 1×10³ is equivalent to the integer 1000. This notation is particularly useful when dealing with very large or very small quantities, as it provides a concise and standardized way to represent them.