This number is a prime.

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The larger, of only two prime-digit truncatable palindromic primes, from which deleting each time a digit from each end, always remains a prime, i.e., 37573, 757, 5. The smaller one is 37273. Note that their concatenation in order 3727337573 is also prime. [Loungrides]

Submitted: 2010-10-06 17:16:33;   Last Modified: 2020-02-23 13:59:54.
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