In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[EX Q]: Lemurs are very social and travel in troops of _ to thirty.
[EX A]: three

[EX Q]: Conflict is inevitable whenever _ or more people work together.
[EX A]: two

[EX Q]: Hexadecimal codes are combinations of _ numbers and letters that identify a specific color.
[EX A]:
six