The book is now available! 1619
(another Prime Pages' Curiosity)
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+ A prime whose cube can be expressed as the sum of three prime squares in two different ways, i.e., 16193 is 32 + 249672 + 601692 and 32 + 281632 + 587412. [Rivera]

+ 1619 is the 256th prime. If you square the number formed from the first two digits in ascending order, namely 16, you get 256. [Missailidis]

(There are 2 curios for this number that have not yet been approved by an editor.)




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