Hi so for this question from Tips Tricks and Shortcuts Session 3, why do we count the 3s in 63 and 69? Like shouldn’t the number also have 2 as a factor since that too is a factor of 6?

I mean you can do that, but you will notice that counting 2 does not change the answer

Because 3 is the limiting factor (is fewer in numbers), whereas 2 is abundant

64 alone is 2^6

Simply counting the 3s can give you the answer, that’s why this is a shortcut