Factor Trees and prime factors
Online Factor Trees NVLM
http://hench-maths.wikispaces.com
60
12 5
3 4
2 2
60 = 5x3x2x2=5x3x22
Use a factor tree to find the prime factors of 60
Use a factor tree to find the prime factors of 70
70
35 2
7 5
70=7x5x2
24
2 12
3 4
2 2
24 = 3x2x2x2=3x23
Prime factors of 24
24
3 8
2 4
2 2
Prime factors of 72
72
6 12
3 2 6 2
3 2
Prime Factors of 72=3x3x2x2x2=32x23