At school to calculate the intensity of the magnetic field generated by a solenoid we use the formula:

B=μ0*(N/l)*i

(I tried to write the formula using preformatted text, but I didn't have success even though I followed the tutorial, so I wrote it like that)

Where μ0 is the Vacuum permeability, N the number of windings, l the lenght of the solenoid and i the current flowing through it. (I know that I should use the magnetic permeability of the air, but it doesn't change a lot)

I would like to know if the type of wire we use to build the solenoid can influence the magnetic field. For example, let's assume we are using a multi-strand wire. Does a solenoid made of this kind of wire behave like many parallel solenoids or it acts like a single one? And if the formula changes in some way, please explain me how. Thanks in advance.