Twelve
The greatest common factor between twelve and eight is four. Don't get confused about greatest common factor and greatest common multiple. There is GCF and GCM, be sure to pay extra attention to the last letter or word, whichevere form it is in.
1,2,4,7,9
The answer is 4.
2
The GCF is 3.
The GCF is 1.
Three
No, it's six. 12 is not a factor of thirty.
The GCF is 4.
Because 12 is greater than 6.
Well, honey, the greatest common factor of 48, 72, and 36 is 12. It's like finding the one thing they all have in common, like a guilty pleasure or a favorite movie. So, grab that calculator and show those numbers who's boss!