The book is now available! 12191...19121 (37-digits)
(another Prime Pages' Curiosity)
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                                    1219113 0363711159 7579511173 6303119121
+ A prime with prime sum of digits that forms the bottom row in a Palindromic Prime Pyramid of Step Size Two which begins: 5, 97579, 159757951, .... [Patterson]




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