Small Sum of Set Members
Let set be the set of distinct positive integers that can be represented in the form , where . Find the minimum value of the sum of 2 distinct elements in .
The answer is 18.
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1 solution
g cd ( 6 , 9 6 ) = 6 , so S is simply the set of positive multiples of 6. The smallest sum of 2 distinct elements is thus 6 + 1 2 = 1 8 .