Final answer:
In the number 20043.769, the digit with the least value is 0. It appears in both the tens and the units place, contributing no value before the decimal point.
Step-by-step explanation:
To find the digit which has the least value in the number 20043.769, we need to look at each digit and determine its value based on its position in the number. The least value a digit can have in our base-ten system is 0. As we can see in the number 20043.769, the digit with the least value is '0' since it holds the place of tens and units before the decimal and has no value after the decimal.