n
Symbol  Format  Data 

n  Code Point 
U+006E 
TeX 
n 

SVG 
The Latin letter n is commonly used in math as a variable.
The capital Latin letter N is used in mathematics to represent the set of natural numbers. Usually, the letter is presented with a "doublestruck" typeface to indicate that it is the set of natural numbers. Otherwise, N is also used as a variable.
A variable is a symbol that represents an unknown or indeterminant quantity. Variables can represent numbers, vectors, or other mathematical objects, depending on the context.