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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