1936 /\ 44 45 /\ /\ 22 15 /\ /\ 1 1 12
the greatest common factor of 6,12, and 15 is 3.
35 5,7 Not much of a tree. More like a factor shrub.
The GCF is 15.
The Greatest Common Factor of 12, 15 is 3.
15 3,5 Not much of a tree. More like a factor shrub.
15 3, 5
15 3,5
5,3
Because 45 is not a factor of 60.
The factor tree of 225 is: 15, 15 3, 5, 3, 5 225 75,3 25,3,3 5,5,3,3
12 6,2 3,2,2
12 6,2 3,2,2
3 is a factor of 12 & a factor of 15, so it's a common factor between 12 & 15. Also, as it's the only common factor between them, in addition to 1 of course, it's the highest common factor between 12 & 15.
12 6,2 3,2,2
12 6,2 3,2,2
The Greatest Common Factor of 12, 44, 15: 1