2785

2785 is a natural number that comes after 2784 and before 2786. In base-10 arithmetic it is odd and divisible by 5, since it ends in 5. Its prime factorization is 2785 = 5 × 557, with 557 being a prime number, making 2785 a semiprime.

In mathematics, 2785 is primarily encountered as a semiprime in studies of factorization and modular arithmetic. Its divisors are 1, 5, 557, and 2785. It does not belong to standard short sequences like consecutive primes or square numbers.

As a year, 2785 CE would occur in the 28th century. In the Gregorian calendar, it would be far in the future relative to the present era, with no specific widely known historical events associated with it.

In astronomy, the number 2785 is used as the numerical designation of a minor planet in the catalog of numbered minor planets, a system in which objects receive sequential numbers after their orbits are confirmed.

In culture and other contexts, 2785 may appear in catalog numbers, model identifiers, or fictional settings to denote a distant future year or a generic numeral.