I'm new to JMP and have very little experience with statistics.

I'm a graduate student and I'm creating an experiment with 3 5-level factors and 3 2-level factors. The custom design in JMP yields 103 systems out of the possible 1000 systems. Due to the large amount of simulation for these systems, 103 is an acceptable number. I am trying to capture all the main effects and 2-way interactions.

I assume this is some sort of mixed-level fractional factorial design but I am curious as to how a number like 103 would be generated. From my understanding of fractional factorials (ie: 5^(3-1)*2^(3-1) = 100 systems), a number like 103 could not be generated.

Any help would be greatly appreciated.