2023 CUBRMC Team #1 n-(sum of digits of n)
Source:
March 8, 2024
number theorycubrmc
Problem Statement
Ben starts with an integer greater than and subtracts the sum of its digits from it to get a new integer. He repeats this process with each new integer he gets until he gets a positive -digit integer. Find all possible -digit integers Ben can end with from this process.