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The highest prime (Posted on 2014-05-16) Difficulty: 2 of 5
You are requested to partition the set of 10 digits (0,1,,9) into a maximal number of subsets, such that in each set it is possible to create a prime number
using all its members.

What is the highest prime thus created?

See The Solution Submitted by Ady TZIDON    
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Question Request for clarification | Comment 1 of 8
What methods are permitted in creating a prime number from individual digits?

Addition and Subtraction? (ie, 6 - 4 = 2)
Multiplication and Division? (ie, 6/3 = 2) 
Other Mathematical operations/ (ie, 3!-1 = 5)
Concatenation? (ie, 1 9 = 19)

  Posted by Steve Herman on 2014-05-16 10:27:15
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