I’d like to ask the good people of this community that, if you do know the solution or figure it out, that you not share the answer here. Feel free to announce your success, but there’s something to be said for discovering the answer completely unaided, even if it takes years.
It’s embarrassingly obvious once you see it though.
Someone else commented the pattern. The answer is not 14 or 15.
Hint
There is no function. You won’t find the answer by trying different combinations math operations on the values. You need to think more outside the box.
Hint #2
Ignore the values.
Hint #3
Focus on just three numbers. How can 13 and 21 produce 7?
Thank you so very much!!!
I think I got it
Wait was I two or three off?
spoiler
Yup!