The capital Latin letter Q is used in mathematics to represent the set of natural numbers. Usually, the letter is presented with a “doublestruck” typeface when it is used to represent the set of rational numbers.
Symbol  Format  Data 

Q  Unicode 

TeX 


SVG 
The set of natural numbers, also called the counting numbers, contains the numbers 0, 1, 2, 3, ...
The Latin Alphabet is a collection of 26 symbols that form the basis of the English language. The alphabet's symbols are used throughout mathematics to represent variables, constants, and coeffecients.
The latin letter q.