1063

1063 is a natural number that follows 1062 and precedes 1064. In mathematics, it is a prime number and, more specifically, a prime congruent to 3 modulo 4. Because of this, 1063 cannot be expressed as a sum of two squares. Its decimal digits sum to 10.

In common numeral systems, 1063 is written as 1063 in decimal, as MLXIII in Roman numerals, as 0x427 in hexadecimal, and as the binary number 10000100111.

1063 CE is a year in the 11th century. It falls within the High Middle Ages, a period marked by feudal developments and ongoing interactions among European realms, the Byzantine Empire, and the broader medieval world. The year is part of historical timelines for medieval politics, culture, and religious institutions, though specific events are not detailed here.

Overall, 1063 is primarily recognized as a prime number with characteristic representations across numeral systems and as a year in medieval history. In mathematical usage, its properties can inform discussions of primality, modular arithmetic, and number theory.