0s

0s is the plural form of zero, the digit that represents the absence of quantity in the decimal numeral system. As a numeral, 0 also functions as a placeholder in positional notation, allowing the expression of different magnitudes, such as 105 and 1000. The occurrence of 0s within a number affects its value and interpretation, and the term "0s" is often used when counting how many zeros appear in a value (for example, "the number has three zeros").

The concept of zero originated in ancient India, where it was used as a placeholder and later treated as a number by Brahmagupta in the 7th century. The idea spread to the Islamic world and from there to Europe, where zero became a standard element of arithmetic and mathematics by the Renaissance.

In mathematics, zero is the additive identity: adding zero to any number yields the original number. Any number multiplied by zero equals zero. Division by zero is undefined, and the expression 0/0 is indeterminate. In many algebraic contexts, zero serves as the root of equations and as the constant term in polynomials of degree zero.

In computing and information theory, 0 is one of the two binary digits, with 1 representing the other. It often stands for false or off in boolean logic. In data representation, leading zeros may be used for fixed-width fields or to indicate padding, but they may be stripped in standard numeric notation.

Outside pure mathematics, 0s appear in measurements, data formats, and textual representations, where counting zeros can indicate magnitude, precision, or formatting conventions.