What does the notation n|q mean?

[Saitama]

Homework Statement

This is no homework question, i could not understand a statement from the book Complex Numbers from A to ...Z because i don't know the meaning of the symbol used.
Here is a screenshot:

The problem is what does "n|q" mean?

Any help is appreciated!

 

[eumyang]

n | q means "n divides q" or "q is divisible by n". In other words, there is an integer p such that q = np.

 

[Saitama]

n | q means "n divides q" or "q is divisible by n". In other words, there is an integer p such that q = np.

Thanks eumyang!