The book is now available! 11110110
(another Prime Pages' Curiosity)
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+ This is the smallest number that can be expressed as the sum of two distinct hex-congruent primes in two different ways:

            3 3     7 7            3 3     7 7
11110110 = 3 1 3 + 7 8 7 and also 3 7 3 + 7 2 7. [Hartley]
            3 3     7 7            3 3     7 7


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