Oh, dude, the highest common factor (HCF) of 12, 20, and 36 is 4. So, like, if you're looking for the biggest number that can divide all three of those numbers without leaving a remainder, it's 4. Easy peasy, right?
Oh honey, the highest common factor (HCF) of 12, 20, and 36 is 4. It's like finding the perfect little black dress that fits all three of them perfectly - simple and elegant. Now go forth and flaunt that mathematical knowledge, darling!