Created by StemPy LabWhat is the largest number of elements a subset of can have if no two different elements of the subset add up to a multiple of ?
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← Some three-digit numbers are equal to exactly 13 times the sum of their own digits. Find all such numbers and add them up. What is the total?Two positive integers a > b are fed to the Euclidean algorithm, which divides repeatedly: a by b, then b by the remainder, and so on, until a remainder is 0. It makes exactly 8 divisions, the last one leaving remainder 0. What is the least possible value of a + b? →
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