The four numbers 2,3,4 and 8 can be combined in pairs in six different ways, and the product of those six pairs will be
2 x 3 = 6
2 x 4 = 8
3 x 4 = 12
2 x 8 = 16
3 x 8 = 24
4 x 8 = 32
The sum of the original four numbers (2, 3, 4 and 8) is 17.
Can you find a different quartet of POSITIVE numbers whose products of pairs are also 6, 8, 12, 16, 24 and 32, but whose sum is less than 17?