Which statement(s) are incorrect about Fractional Factorial Designs?

"

 A Half Fractional Design for 5 factors has the same number of experimental runs as a Full Factorial Design for 4 factors assuming no repeats or replicates or Center Points"

"

Quarter Fractional experiments can exist for those with 4 factors"

"

 Resolution V design is desired while controlling costs of experimentation"

"

 Half Fractional experiments do not exist for those designs with only 2 factors"