The GCF is 1.
Since 12 is a factor or 36, it is automatically the GCF.
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 greatest common factor of 36, 48, and 72 is twelve (12).
The GCF is 3.
Three
No, it's six. 12 is not a factor of thirty.
The GCF is 4.
Because 12 is greater than 6.