{"product_id":"prime-magic-square-puzzles-kermit-rose-9781516949489","title":"Prime Magic Square Puzzles: Based on 5 by 5 magic squares with all prime number entries","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:\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Kermit Rose\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 151694948X\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781516949489\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Createspace Independent Publishing Platform\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 08\/28\/2015\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 78\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.26lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.02h x 5.98w x 0.16d","brand":"Kermit Rose","offers":[{"title":"Paperback","offer_id":44860433924351,"sku":"9781516949489","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_1baa8c05-64ad-45b1-8ab0-02ff5d723c89.jpg?v=1709136071","url":"https:\/\/www.whiterainbookhouse.com\/products\/prime-magic-square-puzzles-kermit-rose-9781516949489","provider":"WR Book House","version":"1.0","type":"link"}