0
0 (zero, ) is a number representing an empty quantity.
0 (zero, ) is a number representing an empty quantity. Adding zero to or subtracting zero from any number leaves that number unchanged. In mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, complex numbers, and algebraic structures.
Multiplying any number by 0 results in 0; therefore, division by zero is generally regarded as undefined in arithmetic.
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