2616

2616 is an integer in the decimal numeral system, valued between 2615 and 2617. It is an even, composite number. The prime factorization of 2616 is 2^3 × 3 × 109, so the number has 16 divisors and is divisible by 1, 2, 3, 4, 6, 8, 12, 24, 109, 218, 327, 436, 654, 868, 1302, and 2616. In Roman numerals, 2616 is written as MMDCXVI. In other bases, data representations may vary, but the decimal form is standard for most everyday use.

One widely known reference to 2616 is RFC 2616, the document that defined HTTP/1.1. Published in June 1999 by the Internet Engineering Task Force (IETF), RFC 2616, Hypertext Transfer Protocol -- HTTP/1.1, described the semantics, request methods, header fields, and state management used by the World Wide Web. The specification was later obsoleted by RFC 7230 through RFC 7235 in 2014, but it influenced HTTP development for many years and remains cited in historical discussions of the protocol.

Because RFC numbers are sometimes referenced by their numeric part, 2616 may be encountered in scholarly and technical discussions as a shorthand for HTTP/1.0/1.1 history, but it is primarily associated with the HTTP/1.1 specification. Beyond mathematics and standards, 2616 does not have a widely recognized standalone cultural or scientific significance.