The book is now available! 12011...11237 (28-digits)
(just those submitted by Mortreuil)
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                                              12011213 1217122312 2912311237

Just showing those entries submitted by 'Mortreuil': (Click here to show all)

+ 1201121312171223122912311237 is the smallest 28-digit prime (which happens to an emirp) formed with seven consecutive increasing four-digit primes. Note that 28 is a perfect number. [Mortreuil]

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