The book is now available! 9631
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The larger of only two 4-digit primes (emirps) p such that 10^100+p is prime. [Loungrides]

+ The largest 4-digit distinct-digit prime that yields another when each digit d is repeated d times, i.e., 9999999996666663331. [Loungrides]

+ The largest 4-digit prime whose the reversal is the square of an emirp, i.e., 1369=37^2. [Loungrides]

+ 9631 is the start of the smallest set of four consecutive primes {9631, 9643, 9649, 9661} that are also consecutive lucky numbers. [Rivera]

(There is one curio for this number that has not yet been approved by an editor.)

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