The three pairs of numbers that each add up to 7 are (1, 6), (2, 5), and (3, 4). In each pair, when you add the two numbers together, the result is 7. These pairs are examples of complementary numbers that combine to equal a specific sum, in this case, 7.
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4, 226, 208, 1810, 1612, 14The sum of each pair is 26 and both the numbers in a given pair are composite numbers.=======================The answer to the question is: 5
There are infinitely many pairs of numbers that will add to 105.8 and infinitely many pairs of numbers that will multiply to 105.8 but there are no pair that will add AND multiply. I do not think there are larger sets, but I could be wrong. One example of a triplet adding and multiplying to the same number is 1, 2 and 3. They add to 6 and multiply to 6.