13 Dec
2013
13 Dec
'13
6:14 a.m.
In the latest update of www.multimagie.com, a new smallest known magic square of powers. A 144x144 magic square of 7th powers, constructed by Toshihiro Shirakawa. Magic sum = 3141592653589793238462643383279502884197169399375105. Amazing, all the digits of its magic sum are exactly the 52 first digits of Pi! And a reminder. On smallest possible magic squares, there still remain ten enigmas for winning €6,900 (~$9,500) and ten bottles of champagne. Christian.