We generally don't do factor trees of negative numbers, since factor trees are designed to obtain the prime factorization and negative numbers don't have prime factorizations. Here's 400:
400
200,2
100,2,2
50,2,2,2
25,2,2,2,2
5,5,2,2,2,2
400 200,2 100,2,2 50,2,2,2 25,2,2,2,2 5,5,2,2,2,2
400 200,2 100,2,2 50,2,2,2 25,2,2,2,2 5,5,2,2,2,2
400 200,2 100,2,2 50,2,2,2 25,2,2,2,2 5,5,2,2,2,2
400 200,2 100,2,2 50,2,2,2 25,2,2,2,2 5,5,2,2,2,2
Use a factor tree. 400 200,2 100,2,2 50,2,2,2 25,2,2,2,2 5,5,2,2,2,2
No, 50 is a factor of 400.
No. 8 is a factor of 400. 400 is a multiple of 8.
Use a factor tree. 400 20,2 10,2,2 50,2,2,2 25,2,2,2,2 5,5,2,2,2,2 2 x 2 x 2 x 2 x 5 x 5 = 400
IT IS PRIME there is no factor tree
factor tree of 216
Factor tree of 204
The greatest common factor of 225 and 400 is 25