'Fifteen' in the Bible

The curtains for one side [of the gate] shall be fifteen cubits with three pillars and three sockets.

On the other side [of the gate] the curtains shall be fifteen cubits with three pillars and three sockets.

The curtains for one side of the court gate were fifteen cubits, with their three support poles and their three sockets;

and the same for the other side [of the court gate]. Left and right of the court gate there were curtains of fifteen cubits; with their three support poles and their three sockets.