1120
560,2
280,2,2
140,2,2,2
70,2,2,2,2
35,2,2,2,2,2
7,5,2,2,2,2,2
80
It is 1 but the highest common factor is 2
IT IS PRIME there is no factor tree
factor tree of 216
Factor tree of 204
The factor tree of 50:5025,25,5,25025,25,5,2
21
The positive integer factor pairs of 1120 are: 1, 1120 2, 560 4, 280 5, 224 7, 160 8, 140 10, 112 14, 80 16, 70 20, 56 28, 40 32, 35 And their reverses.
83 is prime. No tree.
The prime factor tree of 280 is:140,270,2,235,2,2,27,5,2,2,2
1120
Factor Tree of 20: ........20 ......../ \ .......4 5 ....../ \ .....2 2