Putnam 2023 B2

Session B

For each positive integer $n$ , let $k(n)$ be the number of ones in the binary representation of $2023 \cdot n$ . What is the minimum value of $k(n)$ ?

Curated text Kedlaya Putnam archive. Quoted with source.

Solutions

Human solution Solution 1 by Manjul Bhargava, Kiran Kedlaya and Lenny Ng

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