1235746891
This number is a prime.
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The smallest prime formed by inserting between two identical digits, i.e., two 1’s, the ordered concatenation of all the prime digits, 2357, followed from the ordered concatenation of all the composite digits, 4689. [Loungrides]
Submitted: 2020-11-17 05:43:04; Last Modified: 2022-02-06 13:21:01.
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