helicopters with 4x the number of blades I mean, what’s the difference between a helicopter with four blades, versus the same helicopter by with only one blade

helicopters with 4x the number of blades I mean, what’s the difference between a helicopter with four blades, versus the same helicopter by with only one blade, but four times the size? Except a full scale helicopter blade is easily 100 times larger. So they are helicopters, but 100 times smaller, but with four blades.