083

083 is a three-digit numeral that can denote different things in different contexts. In decimal notation, it is commonly treated as the integer 83 with a leading zero, a convention often used for formatting or within computer programs that pad numbers.

In mathematics, 83 is a prime number. It is the 23rd prime. It is a safe prime since (83 − 1)/2 = 41 is prime, and it is a Sophie Germain prime since 2 × 83 + 1 = 167 is prime. These properties place 83 among several notable prime-related classifications used in number theory.

In astronomy, 083 Ausonia is a main-belt asteroid. The number 83 is used to designate its order of discovery in the minor-planet catalog; the leading zero is a formatting convention found in some lists. The asteroid is typically referred to simply as Ausonia, with the numeral indicating its catalog entry.

In other contexts, 083 may appear as a domestic telephone area code or prefix in countries that use leading zeros for area codes, or as a catalog or model number where three digits identify a product line. Without context, the meaning of 083 remains ambiguous, as with many numeric labels that function as identifiers in different systems.