The book is now available! 2377
(just those submitted by Poo Sung)
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+ 2377 = 2&19 + 3&17 + 5&13 + 7&11 + 11&7 + 13&5 + 17&3 + 19&2, where the symbol & means concatenation. 2377 is the smallest prime of this form. [Poo Sung]




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