How many lattice points are there in one unit cell of face centered cubic lattice? (face centered tetragonal lattice)

In face centered arrangement, 8 lattice points at corners & 6 lattice points at face centres.
$\therefore$ total lattice points = 8 + 6 = 14
[total no. of particles $\left.=8\times \frac{1}{8}+6\times \frac{1}{2}=1+3=4\right]$