0×27

0×27 is a mathematical expression representing the product of zero and twenty-seven. In standard arithmetic, any number multiplied by zero equals zero, so 0×27 = 0. More generally, for any real number a, a×0 = 0 and 0×a = 0, reflecting that zero is an absorbing element in multiplication. The result is independent of the order of factors due to the commutative property of multiplication.

In computing and notation, there is potential confusion with the hexadecimal representation 0x27. The character 0x27 denotes a hexadecimal literal, equal to 39 in decimal, not zero. The symbol × used in 0×27 is the multiplication sign, distinct from the letter x used in hexadecimal notation. Context is important for interpretation: mathematical expressions using × denote products, while 0x27 in programming denotes a value in base 16.

This example is often used in education to illustrate the zero property of multiplication and to introduce the idea of absorbing elements in algebra. It is a basic building block in teaching arithmetic, algebra, and computer science concepts related to operator notation and data representation.