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The lowest sums (Posted on 2012-08-04) Difficulty: 3 of 5
1.Find the minimum sum of three 3-digit primes, using all non-zero digits.

2.What is the smallest possible sum of primes which are formed using each of the digits 1 through 9?

No Solution Yet Submitted by Ady TZIDON    
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Hints/Tips re: solutions ....1st part Comment 3 of 3 |
(In reply to solutions by Charlie)

I will not argue whether an   interpretation other than mine makes sense, irrational;

 I should have worded it better , like "all the non-zero digits", or "using  9 distinct non-zero digits" , but clearly I had the 999 result in mind.

If anyone solved , like " primes, all using non-zero digits",  ok ,so be it. It just was not my intention.


  Posted by Ady TZIDON on 2012-08-04 17:18:47
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