Tuesday, May 26, 2009

117

117 = 32 x 13.

117 has a representation as a sum of two squares: 117 = 62 + 92.

117 is the smallest possible value of the longest edge in an integer Heronian Tetrahedron. A Heronian tetrahedron, also called a perfect tetrahedron, is a (not necessarily regular) tetrahedron whose sides, face areas, and volume are all rational numbers.


1172 + 2 and 1172 – 2 are prime numbers.

117 can be written as the difference of prime squares (112 – 22) or prime cubes (53 – 23).

117 is 99 in base 12.


The Lockheed F-117 Nighthawk is stealth ground attack military aircraft.

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