33
/ \
3*11
33 3, 11
33 3,11 51 3,17
18 9 2 33 3 2
4,725 = 33 × 52 × 7
66 33*22 11*6
54 ^ 9x6 ^ ^ 3x3x3x2 re-write like this: 2 x 33
33*4=132. Common Factor is 33
A commonly used factor tree for 132 is: 132 11 12 11 4 3 11 2 4 3 Another factor tree for 132 is: 132 66 2 22 3 2 11 2 3 2 Yet another factor tree for 132 is: 132 66 2 33 2 2 11 3 2 2 Hey for the first factor tree 4 isn't prime
Since 33 is a factor of 66, it is automatically the GCF.
132-2 | 66-2 | 33-3 | 11
The GCF of 33 and 33 is 33.
(3,11) is a factor pair of 33.