A quorum is the minimum number of members required to be present at a meeting in order for business to be conducted. The quorum for a group of 6 members would generally be a majority or more than half of the members. In this case, a quorum would be at least 4 members, as 4 is more than half of 6. Without at least 4 members present, the meeting would not have a quorum, and official business could not be conducted.