Franklin magic square
One day in 1771, Benjamin Franklin, tired of hearing political debates, amused himself by creating the following magic square, now called a Franklin magic square:
The magic constant is 260. Furthermore, half any row or column (positions 1 to 4 or 5 to 8) equals half the magic constant. Two centuries later, Joseph Madachy realized that some half diagonals from the corner to the center also give 260.
Some other 8 by 8 magic squares with these properties are also called Franklin magic squares.
| Title | Franklin magic square |
|---|---|
| Canonical name | FranklinMagicSquare |
| Date of creation | 2013-03-22 16:24:52 |
| Last modified on | 2013-03-22 16:24:52 |
| Owner | PrimeFan (13766) |
| Last modified by | PrimeFan (13766) |
| Numerical id | 4 |
| Author | PrimeFan (13766) |
| Entry type | Example |
| Classification | msc 05B15 |
| Classification | msc 01A50 |
| Synonym | Franklin square |