Zero. Other scales like Celsius and Fahrenheit have negative numbers. Kelvin starts at zero.
it may actually be absolute zero
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The lowest possible temperature on the Celsius scale is -273.15 degrees Celsius. The lowest possible temperature on the Kelvin scale is 0 degrees Kelvin. Therefore the only temperature scale on which -460 degrees is possible is the Fahrenheit scale.
The Kelvin scaleApex
Its Kelvin temperature. The Kelvin scale starts at absolute zero and goes up. Absolute zero on the celsius scale is -273.15oC
willium thompson, lord kelvin
The objects Kelvin temperature. The Kelvin scale starts at absolute zero (-273 degrees Celsius)