1,2,4,7,9
Since 12 is a factor or 36, it is automatically the GCF.
Two numbers that have six as their greatest common factor are six and twelve.
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.
The answer is 4.
2
The greatest common factor of 36, 48, and 72 is twelve (12).
The GCF is 3.
The GCF is 1.
Three
No, it's six. 12 is not a factor of thirty.
The GCF is 4.