Answer: the least amount of marbles would be 24 because it would be divided equally among the people , with none leftover.
Step-by-step explanation: if you had 6 people, each of them would have 4 marbles. if you had 8 people each of them would get 3 marbles. and if you had 12 people, each of them would get 2 marbles.
hope i could help :)