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Primes and patterns into 19-digit integers

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Primes and patterns into 19-digit integers
david_uwi Offline
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#4
03-10-2023, 10:34 AM (This post was last modified: 03-10-2023, 01:56 PM by david_uwi.)
Fascinating! There is only one palindromic prime with an even number of digits. No idea why this should be so.
[edit]... I get it now all even numbered palindromes are divisible by 11 (even 11 which is prime).
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RE: Primes and patterns into 19-digit integers - by david_uwi - 03-10-2023, 10:34 AM



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