The book is now available! Index: Numbers with 4 digits
(for the Prime Pages' Curios Collection)
Prime Curios!
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digits:  1  2  3  4  5  6  7  8  11  17  37  97  301  1001+

Entries with the symbols updated (updated) or new (new) have curios that have been modified, or are new, in the last 7 days.  Entries marked with a prime (check) are primes.

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