Main Page | See live article | Alphabetical index


Seventeen (17) is the natural number following sixteen and preceding eighteen.

Seventeen is the 7th smallest prime number, and is a Fermat prime. The next prime is nineteen, with which it comprises a twin prime.

There are exactly seventeen two-dimensional space groups. These are sometimes called wallpaper groups, as they represent the seventeen possible symmetry types that can be used for wallpaper.

Seventeen is also

See also: fifteen, sixteen, seventeen, eighteen, nineteen, integer, list of numbers.

This article is about the number. For the year AD 17, see 17. For the magazine Seventeen see Seventeen (magazine)