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Prime only as it is (Posted on 2013-01-22) Difficulty: 1 of 5
Find a 3-digit prime number consisting of 3 distinct prime digits, such that none of its other 3-digit permutations and none of its 2-digit combinations are prime?

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  Subject Author Date
Solutionanalytic solutionCharlie2013-01-22 13:41:36
Solutioncomputer solutionCharlie2013-01-22 13:31:19
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