5761

5761 is a natural number that follows 5760 and precedes 5762. It is an odd composite number and, in its prime factorization, it can be written as 7 × 823, where both 7 and 823 are prime. Because it is the product of two distinct primes, 5761 is a semiprime. Its positive divisors are 1, 7, 823, and 5761.

In various numeral systems, 5761 has simple representations. In binary it is 1011010000001. In hexadecimal it is 0x1681. In Roman numerals, large values require an overline for thousands; 5761 is commonly written as V̄DCCLXI, representing 5000 plus 761.

Historically and culturally, the number 5761 also appears in calendrical contexts. In the Hebrew calendar, year 5761 corresponds roughly to the period from September 2000 to September 2001. This usage is an example of how 5761 can denote a point or span in a calendar system rather than a purely mathematical notion.

Summary points include that 5761 is a semiprime with four divisors, its prime factors are 7 and 823, and it has straightforward representations in several bases. Its mathematical properties are typical of a small semiprime, while its appearance in the Hebrew calendar reflects its use beyond pure number theory.