Question 32
Find the two smallest natural numbers $n$ such that the fractions
$$
\frac{68}{n+70}, \frac{69}{n+71}, \frac{70}{n+72}, \ldots, \frac{133}{n+135}
$$
are all irreducible.
$$
\frac{68}{n+70}, \frac{69}{n+71}, \frac{70}{n+72}, \ldots, \frac{133}{n+135}
$$
are all irreducible.