The book is now available! 138959
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ Largest number n (coincidentally prime) such that the nth triangular number contains each of the 10 decimal digits exactly once i.e. T(138959) = 9654871320. [Gupta]




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