Seventy-nine

Seventy-nine (79, LXXIX) is the natural number following seventy-eight and preceding eighty. It is the 22nd prime number. The next is eighty-three. Seventy-nine is a permutable prime, with ninety-seven.

Seventy-nine is also:

• The atomic number of gold.
• The designation of Interstate 79, a freeway that runs from West Virginia to Pennsylvania.
• The number of original Star Trek episodes, not counting the first pilot, "The Cage", which was enclosed into "The Menagerie".

This article is about the number. For the year AD 79, see 79.