According to work by Asch, you would expect to have maximum conformity in the presence of :

Question

Quizplus · Accepted Answer

Asch's research on conformity showed that the presence of three other people resulted in the highest level of conformity. When participants were asked to judge the length of lines on a card, they were more likely to conform to the incorrect judgment made by the majority when there were three other people providing the same incorrect answer. As the number of confederates increased beyond three, conformity did not increase significantly.

According to Work by Asch, You Would Expect to Have