This is a paired 15x15 Magic Square. The central number is 113 and two intersecting numbers make 226. 15x15 math magic square turns into nine 5x5 magic squares.
15x15 math magic square turns into nine 5x5 magic squares. The central number of each 5x5 magic square is different and two intersecting numbers in each 5x5 magic square are twice the central number.
