Ninety-three

Ninety-three (93, XCIII) is the natural number following ninety-two and preceding ninety-four. It is a composite number, with its divisors being 3 and 31, and its factorization is

93 is also:

• The atomic number of neptunium, an actinide.
• The designation of American Interstate 93, a freeway that runs from Massachusetts to Vermont.
• The code for international direct dial phone calls to Afghanistan.
• The number of United Flight 93, which crashed in Pennsylvania, USA on September 11, 2001.

This article is about the number. For the year AD 93, see 93.