{ "item_title" : "Prime Magic Square Puzzles", "item_author" : [" Kermit Rose "], "item_description" : "The puzzles in this book are based on 5 by 5 pandiagonal magic squares. A pandiagonal magic square has 20 sums to the same number. Each row, each column, each of 5 downward diagonals, and each of 5 upward diagonals sum to the same number, called the magic sum. The four following charts show the 5 rows, the 5 columns, the 5 downward diagonals, and the 5 upward diagonals. The rows, columns, and diagonals will be illustrated using the following magic square. Incidentally, all entries in this magic square are prime integers. 5 103 16067 19 1493 17 1489 17 101 16063 113 16061 13 1487 13 1483 11 109 16073 11 16069 23 1481 7 107 The 5 rows:", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/51/694/948/151694948X_b.jpg", "price_data" : { "retail_price" : "6.00", "online_price" : "6.00", "our_price" : "6.00", "club_price" : "6.00", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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