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(341) 3

Part of 1992 Tournament Of Towns

Problems(1)

TOT 341 1992 Autumn O J3 odd sum of its digits

Source:

6/10/2024
Prove that for any positive integer MM there exists an integer divisible by MM such that the sum of its digits (in its decimal representation) is odd.
(D Fomin, St Petersburg)
number theorysum of digitsdivisible