327

327 is a natural number that follows 326 and precedes 328. In mathematics, it is the product of the primes 3 and 109, making it a semiprime and a squarefree composite. Its positive divisors are 1, 3, 109, and 327.

In different numeral systems, 327 is written as 101000111 in binary, 0x147 in hexadecimal, and 507 in octal. In Roman numerals it is CCCXXVII.

In computing, the term 327 is associated with the IBM 3270 family of information-terminal devices and their communications protocol, introduced in the 1970s for use with IBM mainframe systems. The 3270 line played a significant role in early human–computer interaction for business and data processing.

As a calendar year, 327 CE marks a point in late antiquity, a period characterized by the later stages of the Roman Empire and various regional developments across Europe and the Mediterranean. In other uses, 327 appears in cataloging, numbering schemes, and model designations where the number serves as an identifier rather than conveying mathematical properties.