251

This number is a prime.

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251 is the smallest prime number that can be added to a 5-digit number with unique digits to produce a 5-digit number made of the other 5 digits: 39875 + 251 = 40126. [Gaydos]

Submitted: 2016-01-22 20:41:38;   Last Modified: 2018-12-23 04:10:04.
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