Use GCF in grouping stories
~7 min
Use GCF when the story wants the greatest size of equal groups with no leftovers.
Finding Largest Equal Groups
How many groups of 4 are in 12?
12 ÷ 4 = 3
When a story asks to divide two groups into equal parts with no leftovers, finding the greatest common factor (GCF) tells you the largest possible size for each group.