The temperature that has the same numerical value in Kelvin and Celsius is -273.15 degrees.

Here's why:

* Kelvin (K): The Kelvin scale is an absolute temperature scale, meaning its zero point represents the theoretical point where all molecular motion stops.

* Celsius (°C): The Celsius scale is based on the freezing and boiling points of water.

The conversion between Celsius and Kelvin is:

* K = °C + 273.15

Therefore, when the temperature is -273.15°C, the Kelvin value is:

* K = -273.15 + 273.15 = 0 K

So, at -273.15 degrees, both scales have the same numerical value.