13 (thirteen) is the natural number following 12 and preceding 14.

For the 2026 school year, there are 41 public schools serving 18,955 students in New York City Geographic District #13. This district's average testing ranking is 8/10, which is in the top 30% …

District #13 offers evening Adult Education courses extend learning opportunities to everyone in the community.

Sep 13, 2013 · But what’s so unlucky about the number 13, and how did this numerical superstition get started?

Oct 24, 2024 · The number 13 has long been considered unlucky in many Western cultures. Even today — in a world far less superstitious than it was in the past — a surprising amount of …

The meaning of THIRTEEN is a number that is one more than 12.

In Judaism, 13 signifies the age when a boy matures and becomes a Bar Mitzvah, that is, a full member of the Jewish faith.

Explore the curious properties of number 13, an odd number which is prime. Includes mathematical info, prime factorization, divisors, bases and much more! A fascinating reference …

There are 13 lunar months in the year (with a small error), which led the Maya and the Hebrews to consider 13 as auspicious. In medieval theology 13 = 10 + 3 (Commandments plus Trinity), …

Properties of the number 13: factors, prime check, fibonacci check, bell number check, binary, octal, hexadecimal representations and more.