@thefishcrow i'm trying to remember and explain what my brain does. usually i factor ugly numbers to prettier ones and divide by each of those in turn. like, dividing something by 35 i'll divide by 5 and then 7 or vice versa depending. just kinda always look for the numbers you're most comfortable with. i can do eights and dozens in my sleep. 7s though? i'm about ready to reach for the paper.