The book is now available! 990
(another Prime Pages' Curiosity)
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A prime magic square with magic sum 990:

1515330726973137
16726317101191251
1733731727189103
2272415913293157
7913922931367163
1932576123277179

Composed of distinct primes, it is both pandiagonal and symmetrical. [Johnson]

 

  Submitted: 1999-09-07 19:54:17;   Last Modified: 2008-01-30 11:28:00.



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