We can rewrite $-5/3$ as $-1\frac{2}{3}$.
The greatest integer less than or equal to $-1\frac{2}{3}$ is $\boxed{-2}$.
The answer is: -2
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
What is the value of the greatest integer less than or equal to -5/3?

### Answer:
