no normal person has these memorized. and properly finding whether each is prime would take longer than 2 mins. So my point is valid. you either memorized them, or you cheated by A) looking them up or B) Just guessing every number, or every odd number. As far as I'm concerned thats cheating because you didn't actually do any math
I got 100%, but I certainly didn't cheat. I suppose I do have the first 6 memorized, but honestly it isn't that hard to figure out the rest of the numbers given the time available. Still fun though.