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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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Solution answers | Comment 1 of 3

[1]
339 = 113 + 113 + 113 
(371 = 113 + 127 + 131, if the three zeroless primes are each different)

[2]
207 = 2 + 3 + 5 + 41 + 67 + 89
207 = 2 + 5 + 7 + 43 + 61 + 89


  Posted by Dej Mar on 2012-08-04 13:31:11
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