2.4. When a natural number $n$ is divided by 3, the remainder is 2, and when it is divided by 37, the remainder is 22. What is the remainder when this number is divided by 111.
2.4. $n=3 k+2$ and $n=37 l+22 \rightarrow 3 k=36 l+21+l-1 \Rightarrow l=3 m+1$. $n=37(3 m+1)+22=111 m+59$. The remainder is 59.