1. Problem: Evaluate $2$.\n2. Formula: A single integer is already in simplest form, so the value of $n$ is $n$.\n3. Important rules: When evaluating or simplifying a single numeric literal, no operations are required and the number itself is the final result.\n4. Work: The expression is $2$ and there are no operations to perform, so it simplifies directly to $2$.\n5. Final answer: $2$.\n