MathDB
Math Prize 2022 Problem 17

Source:

October 12, 2022

Problem Statement

Let OO be the set of odd numbers between 0 and 100. Let TT be the set of subsets of OO of size 2525. For any finite subset of integers SS, let P(S)P(S) be the product of the elements of SS. Define n=STP(S)n=\textstyle{\sum_{S \in T}} P(S). If you divide nn by 17, what is the remainder?