613

613 is the natural number that follows 612 and precedes 614. In mathematics, it is a prime number, meaning its only positive divisors are 1 and itself. Its prime status places it among the indivisible integers used in number theory and related disciplines. In Roman numerals, 613 is written as DCXIII.

The number 613 also appears in telecommunications as an area code. In the North American Numbering Plan, 613 serves Ottawa and much of eastern Ontario, Canada. It is one of the original area codes established for the region and is commonly heard in phone numbers and related routing information.

In Jewish tradition, 613 refers to the mitzvot, the commandments described in the Torah. The count was notably organized by the medieval Jewish scholar Maimonides in Sefer HaMitzvot. The 613 mitzvot are often categorized into 248 positive commandments and 365 negative commandments, collectively forming a framework for traditional Jewish law and practice. The concept of 613 mitzvot, sometimes called the Taryag Mitzvot in Yiddish, has been the subject of extensive Rabbinic study and interpretation throughout Jewish history.

Overall, 613 functions as a numeric label with distinct meanings in mathematics, geography and telecommunications, and religious tradition, illustrating how a single number can intersect multiple domains.