Question 30
$$
\frac{1}{n}=0.a_{1}a_{2}\ldots
$$
Suppose that $n=a_{1}+a_{2}+\cdots$. Determine all possible values of $n$.
\frac{1}{n}=0.a_{1}a_{2}\ldots
$$
Suppose that $n=a_{1}+a_{2}+\cdots$. Determine all possible values of $n$.
MathNet 2014 Question 30
Math Olympiad Vault · MathNet 2014