79 (number)

79 is the natural number following 78 and preceding 80.

List of numbers — Integers << 70 71 72 73 74 75 76 77 78 79 >>
Cardinal	seventy-nine
Ordinal	79th (seventy-ninth)
Factorization	<math>prime<math>
Roman numeral	LXXIX
Binary	1001111
Hexadecimal	4F

Seventy-nine 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".
• The year AD 79, 79 BC, or 1979.