What is the term for the minimum number of members required to be present for business transactions?

The term that refers to the minimum number of members required to be present for business transactions is "quorum." A quorum is essential for ensuring that decisions made during a meeting reflect the collective agreement of a sufficiently representative portion of the group, thereby legitimizing the proceedings. The requirement for a quorum helps prevent situations where a small number of members can make decisions on behalf of the entire group, which could undermine the integrity of the decision-making process. This concept is widely utilized in various organizations, including legislative bodies, boards, and committees, emphasizing the importance of member representation in discussions and decisions.