18
6 x 3
(2x3) x 3
Since 2 and 3 are prime numbers, the factor tree is complete.
An alternate version of the factor tree for 18 is:
18
2 x 9
2 x (3x3)
8 4,2 2,2,2 18 9,2 3,3,2 The GCF is 2.
18 9,2 3,3,2 30 15,2 5,3,2 42 21,2 7,3,2
IT IS PRIME there is no factor tree
The factor tree of 50:5025,25,5,25025,25,5,2
21
18 9,2 3,3,2
18 9,2 3,3,2
18 9 2 33 3 2
Use a factor tree. 18 9,2 3,3,2
18 9,2 3,3,2
18 9,2 3,3,2
18 9,2 3,3,2
8 4,2 2,2,2 18 9,2 3,3,2 The GCF is 2.
9 3,3 18 6,3 2,3,3 The GCF is 9.
18 9,2 3,3,2 30 15,2 5,3,2 42 21,2 7,3,2
factor tree of 216
IT IS PRIME there is no factor tree