You have two minutes to make a decision, you don’t have a calculator, and if you try to factor the number you will be run over by the trolley from the Ultimate Trolley Problem.
This isn’t a fair problem (in the sense that you defined somewhere else): two people both choosing to take both boxes, but via different algorithms (only one of whom factoring the number), will get different rewards.
This isn’t a fair problem (in the sense that you defined somewhere else): two people both choosing to take both boxes, but via different algorithms (only one of whom factoring the number), will get different rewards.