The book is now available! 7331
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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The largest of only three right-truncatable primes, each formed by concatenating two double-digit emirps. The other two are 3137 and 3797. Note that 7331 is the only right-truncatable prime concatenated in descending order from two double-digit emirps. [Loungrides]


  Submitted: 2018-02-24 02:57:55;   Last Modified: 2018-03-07 18:05:01.

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