Question 105
A natural number $n \ge 2$ is called *special* if there exist $n$ odd natural numbers whose sum is equal to their product.
a) Prove that $5$ is a special number.
b) Determine how many special numbers are in the set $\{2, 3, \dots, 2024\}$.
a) Prove that $5$ is a special number.
b) Determine how many special numbers are in the set $\{2, 3, \dots, 2024\}$.