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A peculiar pandigital (Posted on 2015-12-14) Difficulty: 3 of 5
Find the smallest positive integer N such that a concatenation of N and 2*N is a pandigital number.

30729 has this feature, but it is not the smallest number.

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
Some Thoughtsre: All of themDej Mar2015-12-19 19:30:21
SolutionAll of themCharlie2015-12-14 19:06:38
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