11

This number is a prime.

Just showing those entries submitted by 'Patterson': (Click here to show all)

Aibohphobia (the fear of palindromes) is palindromic itself and contains 11 letters. [Patterson]

11^11+11^11*11-1 is prime. Note that 11 ones are used in the previous expression. [Patterson]

A hendecasyllabic is verse written in lines of exactly 11 syllables. [Patterson]

11 is the only prime of the form 3^p + p for p a prime. [Patterson]

United States Mint image

A hendecagon (or undecagon) is an 11-sided polygon. The shape surrounds the portrait on the Susan B. Anthony one-dollar coin. [Patterson]