260 (number)

260 (two hundred [and] sixty) is the natural number following 259 and preceding 261.

It is also the magic constant of the n×n normal magic square and n-queens problem for n = 8, the size of an actual chess board.

260 is also the magic constant of the Franklin magic square devised by Benjamin Franklin.

The minor diagonal gives 260, and in addition a number of combinations of two half diagonals of four numbers from a corner to the center give 260.

There are 260 days in the Mayan sacred calendar Tzolkin.

260 may also refer to the years AD 260 and 260 BC.